What You Need to Know If You Suspect an Infected Fingernail – Causes, Symptoms, Treatment, and Prevention

An infected fingernail is a common condition that can cause discomfort and pain. It is usually characterized by redness, swelling, and tenderness around the affected area. The infection can occur due to various factors such as injury, poor hygiene, or exposure to bacteria or fungi.

One of the common symptoms of an infected fingernail is pus formation. Pus is a thick, yellowish fluid that is produced as a result of the body’s immune response to the infection. The presence of pus indicates that there is an ongoing infection and immediate treatment is necessary.

If left untreated, the infection can spread to other nails or even to other parts of the body. It is important to seek treatment as soon as possible to prevent further complications. There are several treatment options available for an infected fingernail, ranging from home remedies to medical interventions.

Home remedies for an infected fingernail include soaking the affected finger in warm water with salt or antibacterial soap, applying a topical antibiotic ointment, and keeping the area clean and dry. If the infection is severe or if home remedies are not effective, medical treatment may be necessary. This can include oral antibiotics, drainage of pus, or in some cases, surgical removal of the infected nail.

Infected Fingernail: Symptoms, Causes, and Remedies

Having an infected fingernail can be quite uncomfortable and painful. It is important to recognize the symptoms, understand the causes, and know the available remedies to effectively treat the infection.

Symptoms of an Infected Fingernail

• Redness and swelling around the fingernail
• Pain or tenderness when touched
• Pus or discharge formation
• Increased warmth in the affected area
• In some cases, fever or chills may occur

Causes of an Infected Fingernail

An infection in the fingernail can be caused by various factors. Common causes include:

• Bacterial infection: Bacteria can enter through a break in the skin around the nail
• Fungal infection: Fungi can thrive in moist environments, potentially causing an infection
• Ingrown nail: When the edge of the nail grows into the surrounding skin, it can lead to an infection
• Nail biting or picking: These habits can introduce bacteria into the nail area and increase the risk of infection
• Compromised immune system: Individuals with weakened immune systems are more susceptible to nail infections

Remedies for an Infected Fingernail

Treating an infected fingernail depends on the severity of the infection. Mild cases can often be managed at home with the following remedies:

1. Clean the affected area with warm water and mild soap
2. Apply an over-the-counter antibiotic ointment to help prevent bacterial growth
3. Keep the fingernail and surrounding skin clean and dry
4. Avoid picking or biting the nail to prevent further irritation
5. Soak the finger in warm water with Epsom salt to help reduce pain and swelling

If the infection worsens or does not improve within a few days, it is recommended to seek medical attention. A healthcare professional may prescribe oral antibiotics or perform a minor procedure to drain the pus and relieve the infection.

Remember that preventing an infected fingernail is always better than treating it. Practicing good hand hygiene, avoiding harsh chemicals, and maintaining healthy nail care habits can help reduce the risk of developing an infection in the first place.

Symptoms of an Infected Fingernail:

When a fingernail becomes infected, there can be several noticeable symptoms. These symptoms can vary in severity and may include:

Redness:

One of the first signs of an infected fingernail is redness around the affected area. The skin surrounding the nail bed may appear inflamed and irritated.

Pus:

If an infection develops, pus may accumulate around the nail. Pus is a thick, yellowish fluid that usually indicates an ongoing infection.

Other common symptoms of an infected fingernail may include:

• Pain or tenderness around the nail
• Swelling and a sensation of throbbing
• Heat or warmth in the affected area
• A change in the shape or appearance of the fingernail

If you notice any of these symptoms, it is important to seek treatment as soon as possible. Depending on the severity of the infection, a doctor may prescribe antibiotics or recommend other remedies to help alleviate the infection and promote healing.

Causes of an Infected Fingernail:

An infected fingernail can be caused by various factors, including:

1. Bacterial Infection:

Bacterial infection is a common cause of an infected fingernail. It occurs when bacteria enter the skin around the nail, usually through a break or cut in the skin. This can lead to redness, swelling, pain, and the formation of pus.

2. Fungal Infection:

Fungal infection, such as onychomycosis, can also cause an infected fingernail. Fungi are organisms that thrive in warm and moist environments, making the area under the nail an ideal breeding ground. Symptoms of a fungal infection may include thickened, discolored, and brittle nails.

3. Injury or Trauma:

An injured or traumatized fingernail can become infected if proper care is not taken. When the nail is damaged, whether through a cut, crush, or puncture, it creates an opportunity for bacteria to enter and cause an infection.

4. Poor Hygiene:

Poor hygiene practices, such as not washing hands regularly or not properly cleaning and trimming nails, can contribute to the development of an infected fingernail. Bacteria and fungi can easily accumulate under the nails and cause infections.

5. Nail-Biting or Thumb-Sucking:

Individuals who habitually bite their nails or suck their thumbs are more prone to infected fingernails. These behaviors can introduce bacteria or fungi from the mouth into the nails, increasing the risk of infection.

It is important to address the causes of an infected fingernail in order to effectively treat and prevent future infections. Treating the underlying cause, practicing good hygiene, and seeking medical attention when needed can help promote the healing process and maintain nail health.

Infection Symptoms	Possible Causes
Pus, redness, swelling, pain	Bacterial infection, fungal infection, injury or trauma, poor hygiene, nail-biting or thumb-sucking

Remedies for an Infected Fingernail:

If you suspect your fingernail is infected, there are several remedies you can try at home before seeking medical attention. These remedies can help alleviate the symptoms and promote healing.

1. Warm Water Soaks:

Soaking the infected finger in warm water can help reduce swelling, pain, and inflammation. Add a tablespoon of salt to a small bowl of warm water and soak your finger for 15-20 minutes, three times a day. This can help draw out the infection and promote faster healing.

2. Antibiotic Cream or Ointment:

Applying an over-the-counter antibiotic cream or ointment to the infected area can help prevent further infection and promote healing. Make sure to clean the area thoroughly before applying the cream and cover it with a clean bandage to protect it from dirt and bacteria.

Symptoms to Look for:	Remedies
Redness and swelling	Warm water soaks
Pus-filled blisters	Antibiotic cream or ointment
Severe pain	Over-the-counter pain relievers

It’s important to note that these remedies are not a substitute for professional medical advice. If the infection worsens or does not improve within a few days, it’s recommended to seek medical attention. Your doctor may prescribe antibiotics to treat the infection or may opt to drain any pus-filled blisters if necessary.

Remember to keep your hands and nails clean to prevent future infections. Avoid biting or picking at your nails and use proper nail care techniques to keep them healthy.

How to Prevent Nail Infections:

Preventing nail infections is crucial to maintain healthy and clean nails. By following a few simple steps, you can significantly reduce the risk of developing a nail infection. Here are some tips to help you prevent nail infections:

1. Proper nail hygiene: Ensure that you keep your nails clean and dry at all times. Cleanse your hands and feet regularly, and avoid prolonged exposure to water, as wet conditions can promote the growth of bacteria and fungi. Use a mild soap and warm water to clean your nails, and dry them thoroughly, especially in-between your fingers and toes.

2. Avoid nail trauma: Be cautious when engaging in activities that could cause injury to your nails, such as excessive force or pressure. Avoid biting or picking at your nails, as this can damage the nail bed and increase the risk of infection. If you notice any signs of redness, pain, or swelling, seek medical attention to address the issue promptly.

3. Use proper nail care tools: Ensure that you maintain clean and well-sanitized nail care tools. If you visit a salon for nail treatments, make sure they follow proper hygiene practices, including sterilization of equipment and using disposable files or tools when possible.

4. Protect your nails: When engaging in activities that may put your nails at risk, such as gardening or cleaning, consider wearing gloves to protect your hands and nails from potential exposure to harmful bacteria or chemicals.

5. Avoid sharing personal items: Refrain from sharing nail care tools, such as clippers or files, with others to prevent the transmission of bacteria or fungi.

By following these preventative measures, you can reduce the likelihood of developing a nail infection. However, if you do notice any signs of infection, such as redness, swelling, or the presence of pus, it is important to seek medical treatment promptly. In many cases, nail infections can be effectively treated with antibiotics and proper care.

Treatment Options for Infected Fingernails:

When faced with an infected fingernail, prompt treatment is crucial to prevent further complications. The following treatment options can help alleviate symptoms and promote healing:

1. Antibiotics:

In cases of severe infection, a doctor may prescribe antibiotics to combat the underlying bacterial infection. These medications can help eliminate the infection and reduce redness and swelling of the affected area.

2. Warm Soaks:

Soaking the infected finger in warm water can help relieve pain and discomfort. Add Epsom salt or mild antiseptic solution to the water to further aid in killing bacteria and reducing the risk of infection.

Additionally, warm soaks can help draw out any pus that may have accumulated, promoting drainage and speeding up the healing process.

3. Keeping the Area Clean:

Maintaining good hygiene is crucial in treating an infected fingernail. Clean the area with mild soap and warm water regularly to remove any bacteria or debris, preventing further infection.

After cleansing, apply an over-the-counter antibiotic ointment to keep the area moist and aid in healing.

4. Pain Management:

Over-the-counter pain relievers such as ibuprofen or acetaminophen can help alleviate pain and reduce inflammation associated with an infected fingernail. Follow the recommended dosage instructions and consult a healthcare professional if pain persists or worsens.

It is important to note that these treatment options may help relieve symptoms and promote healing in mild cases of infected fingernails. However, if the infection does not improve or worsens, it is essential to seek medical attention for further evaluation and appropriate treatment.

When to Seek Medical Attention:

If you experience severe pain, swelling, redness, or pus around an infected fingernail, it is important to seek medical attention.

These symptoms may indicate that the infection has spread or become more severe. In some cases, an infected fingernail can lead to a more serious condition such as cellulitis or an abscess.

If you have a compromised immune system or are at high risk for infection, it is especially important to see a doctor for treatment.

A healthcare professional can assess the severity of the infection and may prescribe antibiotics to help clear the infection. They can also provide recommendations for pain management and offer guidance on how to care for the infected fingernail to prevent further complications.

It is best not to delay seeking medical attention if you are experiencing any concerning symptoms. Prompt treatment can help prevent the infection from spreading and minimize the risk of complications.

Complications of an Infected Fingernail:

If left untreated, an infected fingernail can lead to various complications and more severe symptoms. Some of the complications of an infected fingernail include:

Pain:

An infected fingernail can cause significant pain and discomfort. The area around the nail may become tender and sensitive to touch. The pain can vary in intensity and may interfere with daily activities.

Infection Spread:

If the infection is not treated promptly, it can spread to other parts of the finger or hand. The bacteria or fungi causing the infection can enter the bloodstream and potentially cause a more serious infection elsewhere in the body.

Cellulitis:

Cellulitis is a skin infection that can occur as a result of an untreated infected fingernail. It causes the skin around the nail to become red, swollen, and warm. If cellulitis progresses, it may lead to the development of abscesses, which are pockets of pus that can be particularly painful and may require drainage.

Septicemia:

In rare cases, an untreated infected fingernail can lead to septicemia, a severe and potentially life-threatening infection that can spread throughout the body. Symptoms of septicemia include fever, chills, rapid heart rate, and confusion. Immediate medical attention is necessary to treat septicemia.

Treatment for an infected fingernail typically involves antibiotics to eliminate the infection. Depending on the severity of the infection, your doctor may prescribe oral antibiotics or recommend topical treatments. In some cases, drainage of pus may be necessary. Proper wound care and maintaining good hand hygiene can also help prevent complications and promote healing.

If you suspect you have an infected fingernail or are experiencing severe symptoms, it is important to seek medical attention. A healthcare professional can evaluate your condition and provide appropriate treatment to prevent complications.

Common Complications of an Infected Fingernail

Complication	Description
Pain	An infected fingernail can cause significant pain and discomfort.
Infection Spread	If left untreated, the infection can spread to other parts of the finger or hand.
Cellulitis	An untreated infected fingernail can lead to cellulitis, a skin infection that causes redness, swelling, and warmth.
Septicemia	In rare cases, an infected fingernail can lead to septicemia, a severe and potentially life-threatening infection that can spread throughout the body.

Risk Factors for Nail Infections:

Nail infections can occur for a variety of reasons, and there are several risk factors that can increase your likelihood of developing an infected fingernail. Understanding these risk factors can help you take proactive steps to prevent or treat nail infections.

1. Poor nail hygiene: Neglecting proper nail care can leave your fingernails vulnerable to infections. Trimming your nails too short or cleaning them too aggressively can damage the nail bed and create openings for bacteria or fungi to enter.

2. Nail trauma: Injuring your fingernail, such as hitting it with a hammer or getting it caught in a door, can lead to an infected nail. The trauma can create an entry point for bacteria or fungi, which can then cause an infection.

3. Prolonged exposure to moisture: Keeping your hands in wet or moist environments for extended periods can weaken the fingernail and make it more susceptible to infection. This includes activities like dishwashing without gloves or frequent swimming.

4. Weakened immune system: Having an underlying condition or taking medications that compromise your immune system can increase your risk of developing a nail infection. Antibiotics, in particular, can disrupt the natural balance of bacteria on the skin and nails.

5. Diabetes: People with diabetes are more prone to developing nail infections due to their compromised blood flow and weakened immune system. High blood sugar levels can also promote the growth of bacteria and fungi.

6. Nail salon hygiene: Visiting a nail salon with poor hygiene practices can expose you to bacteria and fungi that can cause nail infections. Make sure the salon you visit follows proper sterilization procedures for their tools.

If you experience symptoms of an infected fingernail, such as pain, redness, swelling, or pus, it’s important to seek prompt treatment. Left untreated, nail infections can worsen and potentially spread to other areas of the body.

Home Remedies for Infected Fingernails:

Infected fingernails can be painful and uncomfortable, but there are several home remedies that can help alleviate the symptoms and promote healing. These remedies can be used in conjunction with medical treatment or as a first line of defense if the infection is mild. However, it’s important to note that if the infection is severe or doesn’t improve with home remedies, it’s best to seek medical attention.

Symptoms of Infected Fingernails:

Before trying any home remedies, it’s important to identify the symptoms of an infected fingernail. These may include redness, swelling, tenderness, and the presence of pus. Infected fingernails can also be accompanied by pain, warmth, and a throbbing sensation.

Treatment Options:

1. Warm Water Soaks: Soaking the infected fingernail in warm water can help reduce pain and swelling. Add Epsom salt or a mild antiseptic solution to the warm water for added benefits.

2. Tea Tree Oil: Tea tree oil has natural antibacterial properties and can be applied topically to the infected area. Mix a few drops of tea tree oil with a carrier oil, such as coconut oil, and apply it to the affected fingernail.

3. Apple Cider Vinegar: Apple cider vinegar is known for its antimicrobial properties. Soak a cotton ball in diluted apple cider vinegar and apply it to the infected fingernail for 10-15 minutes. Rinse with warm water and pat dry.

4. Garlic: Garlic has antimicrobial properties and can help fight the infection. Crush a garlic clove and apply the paste to the infected fingernail. Cover with a bandage and leave it on for a few hours before rinsing off.

Remedy	Instructions
Warm Water Soaks	Soak the infected fingernail in warm water, adding Epsom salt or antiseptic solution for added benefits.
Tea Tree Oil	Mix a few drops of tea tree oil with a carrier oil, such as coconut oil, and apply it to the affected fingernail.
Apple Cider Vinegar	Soak a cotton ball in diluted apple cider vinegar and apply it to the infected fingernail for 10-15 minutes. Rinse with warm water and pat dry.
Garlic	Crush a garlic clove and apply the paste to the infected fingernail. Cover with a bandage and leave it on for a few hours before rinsing off.

These home remedies can help alleviate the symptoms of an infected fingernail and promote healing. However, if the infection worsens or doesn’t improve with home treatment, it’s important to consult a healthcare professional for further evaluation and treatment, including the possible need for antibiotics.

Over-the-Counter Nail Infection Treatments:

If you’re experiencing pain, redness, swelling, and pus around your fingernail, you may have an infected fingernail. These symptoms can be caused by an injury, a fungal infection, or bacterial growth. If you suspect that you have a nail infection, it’s important to seek treatment as soon as possible to prevent the infection from spreading.

Antibiotics for Nail Infections:

One common treatment for nail infections is the use of over-the-counter antibiotics. These topical ointments or creams are applied directly to the infected area and work to kill bacteria that may be causing the infection. It’s important to follow the instructions provided with the medication and continue usage for the recommended duration to ensure that the infection is fully treated.

Antifungal Treatments:

In cases where the nail infection is caused by a fungal infection, over-the-counter antifungal treatments may be recommended. These treatments come in the form of creams, gels, or nail polishes that contain antifungal agents. They work by targeting the fungus and preventing its growth and spread. It’s important to use these treatments consistently and as directed until the infection clears up.

While over-the-counter treatments can be effective for mild to moderate nail infections, it’s important to note that more severe infections may require prescription medications or medical interventions. If your symptoms worsen or do not improve with over-the-counter treatments, it’s best to consult a healthcare professional for further evaluation and treatment.

Remember, proper nail hygiene and care can help prevent nail infections from occurring in the first place. Avoid biting your nails or picking at the skin around them, keep your nails clean and trimmed, and avoid sharing nail tools with others to reduce the risk of infection.

Professional Treatments for Infected Fingernails:

If you suspect you have an infected fingernail and home remedies haven’t improved your symptoms, it may be time to seek professional treatment. A healthcare provider can accurately diagnose your condition and prescribe appropriate treatments to address the infection.

Medical Evaluation:

When you visit a healthcare professional for an infected fingernail, they will begin by conducting a thorough evaluation. They will examine the affected finger for signs of infection, such as redness, swelling, or pus. They may also ask about your medical history and any previous treatments you have attempted.

In some cases, the healthcare provider may order laboratory tests, such as a culture or sensitivity test, to identify the specific bacteria causing the infection. This information can help determine the most effective antibiotic to target the infection.

Antibiotics:

If the infection is severe or if home remedies have been unsuccessful, your healthcare provider may prescribe antibiotics. These medications are used to kill the bacteria causing the infection and help prevent it from spreading.

The type of antibiotic prescribed will depend on the specific bacteria causing the infection. Commonly prescribed antibiotics for infected fingernails include penicillin derivatives, cephalosporins, or fluoroquinolones. It’s important to take the full course of antibiotics as prescribed, even if your symptoms improve, to ensure the infection is fully eradicated.

Incision and Drainage:

In some cases, if there is a significant amount of pus or abscess formation, the healthcare provider may perform a procedure called incision and drainage. This involves making a small incision in the affected nail or surrounding tissue to allow the pus to drain out. This can help relieve pain and decrease swelling.

Following the procedure, the healthcare provider may dress the wound and provide instructions for proper wound care at home. It’s essential to follow these instructions to promote healing and prevent further infection.

In conclusion, if you have an infected fingernail that is not improving with home remedies, seeking professional treatment is recommended. A healthcare provider can accurately diagnose the infection and prescribe appropriate treatments, such as antibiotics or incision and drainage, to help effectively treat the condition and prevent complications.

Improving Fingernail Health:

Proper care of your fingernails can help prevent them from becoming infected and developing other issues. Here are some tips to improve your fingernail health:

1. Keep your nails clean: Regularly clean your nails with warm water and mild soap to remove dirt and bacteria that can cause infection. Dry your nails thoroughly after washing.

2. Trim nails properly: Use clean and sharp nail clippers to trim your nails straight across. Avoid cutting them too short, as this can increase the risk of infection.

3. Avoid biting your nails: Biting your nails can introduce bacteria and germs to the nail bed, leading to infections. Find alternative ways to manage stress or anxiety that don’t involve nail biting.

4. Moisturize your nails: Healthy nails require proper hydration. Rub a moisturizing lotion or oil into your nails and cuticles to keep them hydrated and prevent them from becoming brittle and prone to infection.

5. Use gloves: Protect your nails from harsh chemicals, detergents, and excessive moisture by wearing gloves while doing household chores or working with water. This will help prevent damage and infection.

6. Avoid nail trauma: Be careful not to injure your nails, as trauma can lead to infection. Avoid using your nails as tools and be cautious when engaging in activities that may put pressure on or cause damage to your nails.

7. Seek prompt treatment: If you notice any signs of infection, such as swelling, pain, redness, or the presence of pus around the fingernail, seek prompt medical attention. Your doctor can prescribe antibiotics or provide appropriate treatment to prevent the infection from worsening.

By following these tips, you can improve the health of your fingernails and reduce the risk of developing infections.

Preventing Future Nail Infections:

To avoid experiencing the pain and discomfort of an infected fingernail in the future, taking some preventive measures is necessary. By following these steps, you can reduce the risk of infection and maintain the health of your nails.

Proper nail hygiene: Ensure that you keep your fingernails clean and properly trimmed. Regularly washing your hands and nails with soap and water can help remove dirt and bacteria that can potentially cause an infection.

Avoid nail biting: Nail biting can introduce bacteria into the nails and surrounding skin, increasing the chances of an infection. Try to find alternative methods to manage stress or anxiety, such as fidget toys or stress balls.

Be cautious with manicures: If you enjoy getting professional manicures, make sure the salon follows proper hygiene practices. Avoid using shared tools that could spread bacteria or fungi. Bringing your own nail care kit is a good way to minimize the risk of infection.

Protect your nails: When engaging in activities that may expose your nails to potential harm, such as gardening or household chores, consider wearing gloves to prevent injuries. Open wounds or cuts near the fingernail can easily lead to infection.

Avoid sharing personal items: Sharing items like nail clippers, nail files, or towels can spread harmful bacteria or fungi. Each person should have their own set of tools for nail care.

Seek prompt treatment: If you notice any signs of an infected fingernail, such as redness, pus, or pain, it is crucial to seek medical attention promptly. Early treatment with antibiotics or other prescribed medications can help prevent the infection from worsening.

By following these preventive measures, you can reduce the likelihood of developing a fingernail infection and maintain the health and appearance of your nails.

Frequently Asked Questions about Infected Fingernails:

What are the symptoms of an infected fingernail?

An infected fingernail can cause various symptoms, including swelling, pain, redness, and the presence of pus. The area around the infected fingernail may also feel warm to the touch.

What causes an infected fingernail?

An infected fingernail is usually caused by bacteria entering a nail bed through a break in the skin. This can occur due to a cut or a puncture wound near the nail. Certain conditions, such as diabetes or a weakened immune system, can also increase the risk of developing an infected fingernail.

How can I treat an infected fingernail at home?

If you suspect you have an infected fingernail, it is important to keep the area clean by washing it with warm water and mild soap. Soaking the affected finger in warm water with Epsom salt can also help reduce inflammation. Applying an over-the-counter antibiotic ointment and covering the nail with a sterile bandage can aid in healing.

When should I see a doctor for an infected fingernail?

If the infection does not improve within a few days of home treatment or if the symptoms worsen, it is recommended to consult a doctor. Additionally, if you have a medical condition that affects your immune system or if the infection spreads to other areas, medical attention should be sought.

Can antibiotics help with an infected fingernail?

In some cases, a doctor may prescribe oral antibiotics to treat an infected fingernail. This is usually done if the infection is severe or if it has spread beyond the nail bed. Topical antibiotics may also be recommended to prevent further infection.

How can I prevent an infected fingernail?

To prevent an infected fingernail, it is important to practice good nail hygiene. Avoid biting or picking at your nails, and keep them trimmed and clean. If you have any cuts or wounds near your nails, be sure to clean them properly and apply an antibacterial ointment. Wearing gloves when working with your hands or exposed to chemicals can also help protect your nails.

Conclusion

While an infected fingernail can be painful and uncomfortable, prompt treatment and proper care can help speed up the healing process. If home remedies do not improve the symptoms, it is important to seek medical attention to prevent further complications.

Q&A:

What are the symptoms of an infected fingernail?

The symptoms of an infected fingernail may include pain, swelling, redness, warmth, and pus around the nail. There may also be an unpleasant odor and the affected finger may be difficult to move.

What causes an infected fingernail?

An infected fingernail is usually caused by bacteria entering the nail bed through a break in the skin or nail. This can happen from biting or picking at the nails, getting a manicure or pedicure with unsanitary tools, or injuring the finger.

How can I treat an infected fingernail at home?

If the infection is mild, you can try soaking the affected finger in warm water with antibacterial soap for about 15 minutes, three times a day. You can also apply an over-the-counter antibiotic ointment and cover the finger with a clean bandage. However, if the infection is severe or does not improve within a few days, it is important to see a doctor.

Should I pop the pus from an infected fingernail?

No, you should never pop the pus from an infected fingernail. Popping the pus can further spread the infection and may lead to more serious complications. It is best to seek medical attention if there is pus present.

What are the possible complications of an infected fingernail?

If left untreated, an infected fingernail can lead to more serious complications such as abscess formation, cellulitis (skin infection), or even osteomyelitis (bone infection). It is important to seek medical treatment if the infection does not improve or if you develop symptoms such as fever, severe pain, or spreading redness.

What are the symptoms of an infected fingernail?

The symptoms of an infected fingernail may include redness, swelling, pain, tenderness, warmth, pus-filled blisters, and a throbbing sensation.