Paronychia Treatment in Delhi, India

Paronychia is a common infection of the skin around the fingernails or toenails, typically affecting the cuticle or the sides of the nail. It occurs when bacteria, fungi, or yeast enter through small breaks in the skin, often caused by nail-biting, picking, manicures, or prolonged moisture exposure.

Paronychia can be acute (develops suddenly and usually affects one nail) or chronic (persists for more than six weeks and may affect multiple nails). While most cases are mild, untreated paronychia can lead to complications such as abscess formation, nail deformities, or even deeper tissue infections.

Prompt treatment and proper nail hygiene are key to managing and preventing paronychia.

Depending on the nature and severity of the condition, paronychia is categorised into the following two main types:

Acute Paronychia

This type of paronychia typically affects one side of the nail fold. Acute paronychia develops suddenly often as a result of minor trauma. In some cases, it may go away on its own. Immediate medical attention is required if:

• Symptoms persist beyond a few days
• The condition causes intense pain or high fever 
• The person has a weakened immune system 
• Paronychia symptoms return after improving 

Chronic Paronychia

When paronychia lasts for more than six weeks, it is classified as chronic paronychia. If left untreated, chronic paronychia can lead to permanent nail damage. The symptoms of this type of paronychia develop slower than acute paronychia. It can affect multiple fingers or toes at once.

Paronychia results from a staph infection (caused by Staphylococcus aureus or Streptococcus pyogenes) which can be caused by:

Trauma or Injury to the Nail Fold

Minor injuries resulting from nail biting, picking at the skin around the nail, or aggressive manicuring can disrupt the protective barrier of the skin. A damaged skin barrier allows bacteria to enter and infect the area.

Nail Biting or Thumb Sucking

A common cause of paronychia in children and young adults, repeated nail biting and thumb sucking may result in fingernails getting exposed to saliva. Saliva introduces moisture and bacteria to the area, increasing the risk of infection. 

Prolonged Exposure to Moisture or Irritants

The skin of people who frequently immerse their hands in water or use dishwashers or cleaners regularly can get exposed to moisture, which can compromise the cuticle seal allowing organisms to invade. 

Manicures 

During a manicure, cuticle pushing or trimming can create tiny breaks or tears in the skin around the nail (the nail folds or cuticle area). These minor injuries compromise the skin’s natural barrier, allowing bacteria, fungi, or yeast (commonly Candida) to enter the skin and cause infection.

Ingrown Nails

An ingrown nail occurs when the edge of a nail (usually on the toe) grows into the surrounding skin instead of over it. This causes a small break or wound in the skin near the nail. This break provides an entry point for bacteria, leading to acute paronychia.

While paronychia can affect anyone, the following risk factors can increase one’s chances of developing the skin infection:

Poor Nail Hygiene

Many people ignore nail hygiene. They do not clean/trim their nails regularly or pick at them. Here are some ways in which poor nail hygiene can lead to paronychia:

• When nails are not cleaned regularly, dirt, bacteria, and fungi can accumulate under them and around cuticles, increasing the risk for infection
• Long or jagged nails can scratch the skin around them or collect more debris, increasing the risk of skin trauma and subsequent infection
• Nail picking damages cuticles. As a result, they are unable to prevent microorganisms from entering the skin 

Underlying Skin Conditions

Skin conditions such as eczema, psoriasis and contact dermatitis can cause the skin to crack, peel, scale or flake, weakening its natural protective barrier, which increases susceptibility to infection.

Immunosuppression

Some health conditions and medications can weaken the immune system. A weak immune system is less effective at identifying and protecting the body against intruders. In an immunocompromised individual, even minor injuries or breaks in the skin around the nail (e.g., from nail biting, hangnails, or manicures) can lead to paronychia. 

Regular Use of Artificial Nails 

Artificial nails can trap moisture and harbour bacteria or fungi beneath them, especially if they're damaged or poorly applied creating an ideal environment for bacteria or fungi to grow. 

Certain Nail Enhancements 

Some nail enhancement options such as acrylics and gel applications can cause micro-trauma to the nail folds, damaging the skin’s protective barrier. 

Occupational Hazards

Occupations such as dishwashing, bartending, nursing, and cleaning often require prolonged exposure to water. Repeated washing and drying of the skin around fingernails or toenails can weaken the skin barrier around them, making it easier for bacteria or fungi to enter the skin.

Symptoms of paronychia can vary from person to person depending on the type and severity of infection and whether the immune system is functioning as it should. 

Here are some common paronychia symptoms:

Redness 

Infection or irritation caused by paronychia triggers the body's immune system, which responds by sending more blood to the affected area. Increased blood flow causes the area around the nail fold (usually the cuticle or side of the nail) to appear red and swollen. Depending on the severity of the condition, redness may be localized (just around one side of the nail) or more widespread.

Changes in the Appearance of the Affected Nails

A bacterial or fungal infection (common in chronic paronychia) can cause the affected nails to appear yellow, green or brown. In some cases, paronychia can trigger chronic inflammation disrupting normal nail growth, leading to thickened, ridged, or misshapen nails.

Tenderness

In severe cases, pus can accumulate under the skin near the nail fold. This buildup increases pressure in a confined space, which stretches pain-sensitive tissues and leads to significant tenderness.

Warmth in the Affected Areas 

When bacteria, fungi or other microorganisms enter the skin, the immune system reacts by sending immune cells to the affected area. It also instructs blood vessels in the area to dilate, so more white blood cells and nutrients can be moved to it. Increased blood circulation in the area makes it feel warmer than usual.

Doctors rely on the following diagnostic techniques to diagnose paronychia accurately and in a timely manner:

Clinical Examination

In most cases, a clinical examination can help doctors make a definitive diagnosis. During a clinical examination, the physician asks the patient questions about their symptoms. They may also examine the person’s nails to look for signs of infection such as redness and swelling around the affected nail fold and discolouration or separation of the nail from the nail bed.

Pus Culture Test

This diagnostic test involves collecting a pus sample from the infected area and then analysing it to identify the type of bacterium or fungus responsible for the infection. 

KOH Test 

If chronic paronychia is suspected, a doctor may order a KOH test. In this test, a clinician scrapes the nail fold or nail plate of the patient and examines the sample under a microscope after applying KOH or potassium hydroxide-a strong alkaline (basic) chemical compound, which dissolves keratin and reveals fungal structures.

Nail Biopsy

If there is no improvement in symptoms or swelling/discolouration persists, a nail biopsy may be ordered. It involves removing a small piece of nail tissue (which may include the nail matrix, bed, or fold) for histopathological examination.

Blood Tests

A complete blood count or blood glucose test may be performed if the infection is spreading beyond the nail fold, or the patient is immunocompromised. These and other blood tests can help:

• Detect a high WBC count (suggests that the infection may be more severe or spreading) 
• Identify the bacteria or fungus in the bloodstream.

The importance of timely and effective paronychia treatment cannot be emphasized enough, especially in preventing the infection from spreading or causing permanent nail damage. Here are some paronychia treatment options for paronychia:

Home Care

People with mild paronychia can manage their symptoms by following the below tips:

• Soak the affected finger or toe in warm water 3–4 times a day for 15–20 minutes (helps reduce swelling and pain)
•  Keep the nail dry to prevent further infection
• Prevent exposure to moisture and harsh chemicals

Medications 

Here are some medications used to treat paronychia:

• Mupirocin, Fusidic acid, and Neomycin- Inhibit bacterial growth 
• Cephalexin, Amoxicillin-clavulanate, and Clindamycin- Prevent the infection from spreading
• Hydrocortisone and betamethasone- Help reduce inflammation caused by chronic non-infectious paronychia

Abscess Drainage

If pus is present or an abscess has formed, a healthcare provider may first numb the affected area using a local anaesthesia and then make a small cut to release pus. In some cases, a wick (small gauze strip) is placed to keep the site open and allow continued drainage. If the infection has spread under the nail, a part of the nail may be removed.

Surgery 

If symptoms do not improve with non-surgical treatment or paronychia recurs, a dermatologist or hand surgeon may perform a surgical nail fold excision (to remove a part of the affected nail fold tissue) or marsupialisation (involves creating a permanent opening to allow continuous drainage of an abscess).

One can prevent paronychia by maintaining good nail hygiene, avoiding irritants, and breaking bad habits that increase paronychia risk. Here are some simple, yet effective paronychia prevention tips:

Maintain Good Hand and Nail Hygiene

Individuals should wash their hands regularly with mild soap and water, especially after touching dirty objects. After washing their hands and feet, one should dry them to prevent moisture from building up. 

Avoid Nail Biting 

Poor habits such as nail biting and picking (at the skin around the nails) can cause tiny tears, creating an entry point for bacteria or fungi. To stop biting their nails, one can cover their fingers, keep their nails trimmed or substitute nail biting with a healthy habit. In people who feel an irresistible urge to bite their nails (chronic nail biting) a bitter-tasting nail polish can help break the bad habit. 

Manage Chronic Skin Conditions

People with eczema, psoriasis and other chronic skin conditions that can increase their risk of developing paronychia should use medications and follow their doctor’s instructions to manage their condition. 

Be Careful With Manicures and Pedicures 

Before getting a manicure or pedicure, one should make sure tools are sterilized properly and instruct the manicurist/nail technician to avoid overzealous trimming or pushing cuticles (as it can damage the protective skin barrier). 

Use Artificial Nails Sparingly 

Individuals should limit the use of acrylic nail extensions and gel nails as they can trap moisture and damage natural nails, increasing infection risk. When it's time to remove nail extensions, one should proceed cautiously as peeling or pulling off artificial nails can rip off layers of the natural nail, exposing it to infection.

Though paronychia isn’t usually a serious concern, it can cause the following complications if left untreated:

Abscess Formation

Failure to manage the infection can lead to the formation of a localised pus-filled abscess under or beside the affected nail. An abscesses can cause pain and swelling, and may require surgical drainage.

Infection Spread

Delay in seeking treatment can lead to the infection spreading to the surrounding skin tissue (cellulitis), causing redness, warmth, pain, and swelling. In rare cases (especially in immunocompromised individuals), infection can lead to sepsis, a potentially life-threatening systemic infection.

Nail Deformities or Loss

Chronic or severe infections may damage the nail matrix, leading to:

• Thickened nails
• Grooves or ridges
• Split nails
• Permanent loss or detachment of the nail (onycholysis)

Even with treatment, it may take months before the affected nail’s original appearance is restored. 

Osteomyelitis

In rare cases, if the infection penetrates deeper structures, it can reach the bone underneath or near the infected nail. This serious complication is known as osteomyelitis. When this happens, surgical intervention may be necessary. 

Functional Impairment

Chronic pain, swelling, or deformities resulting from paronychia can affect motor skills, interfering with everyday activities such as typing and writing.

Is paronychia contagious?

Paronychia itself is not usually considered contagious. However, if the infection is caused by a highly contagious fungus or bacteria and there is direct contact with broken skin, there is a small risk of transmission. Proper hygiene can effectively prevent this.

Can paronychia recur after treatment?

Yes, paronychia can recur, especially if the underlying causes, such as repeated trauma, poor nail care, or chronic exposure to moisture, are not addressed. Preventive measures and proper follow-up care significantly reduce the risk of recurrence.

How long does it take for paronychia to heal completely?

Mild cases may resolve within a few days with home care, while more severe or chronic cases can take several weeks or longer. Healing time also depends on whether complications like abscesses or nail deformities are present.

Are there any lifestyle changes that can support recovery?

Yes. Avoiding moisture, using protective gloves for wet work, moisturizing hands to avoid skin cracking, and eliminating habits like nail biting or cuticle picking can significantly speed up healing and prevent relapse.

Can children get paronychia, and how is it typically managed in them?

Yes, children can develop paronychia, often due to thumb-sucking or nail biting. While the basic principles of treatment remain the same, pediatric care may require gentler medication formulations and greater parental involvement in maintaining hygiene.

Does diet play any role in paronychia prevention or healing?

A balanced diet rich in vitamins A, C, and E, as well as biotin and zinc, can support skin and nail health, potentially reducing the likelihood of infection. While diet alone won't cure paronychia, it complements medical treatment.

Can I continue using nail polish or artificial nails after my paronychia infection has been treated?

It’s advisable to avoid nail polish and artificial nails during recovery and for some time afterward, as they can trap moisture and irritate the healing nail area. Resuming these practices too soon can delay healing or cause recurrence.

How soon should I expect to see improvement after starting paronychia treatment?

For mild acute paronychia, symptoms might begin to improve within a few days of starting home care or medication. However, more severe acute cases or chronic paronychia can take several weeks or even months to fully resolve, especially if nail regrowth is involved. Consistency with treatment and follow-up with your doctor are crucial.

Reviewed by Dr. Kashish Kalra, Head of Dept and Consultant, Dermatology, on 9th July 2025.