A round patch on your child's scalp that you suddenly notice one day, flaking and with the hair breaking off at the root... This is one of the conditions that worries parents most: ringworm. It is quite common in school-age children, is contagious, and when treated correctly, it usually heals without leaving a mark. However, in children where weeks are lost because "we applied a cream and it didn't go away," the risk of permanent hair thinning increases.

In this article, I explain scalp fungus (medically known as tinea capitis), other fungal infections seen in children, conditions that are often confused with it, and the logic behind treatment.

What Is Ringworm? Two Different Diseases Share the Same Name

In everyday language, the same word is often used for two separate conditions, and this overlap is what confuses families the most:

  • Tinea capitis (scalp fungus): fungi called dermatophytes affect the hair follicle and hair shaft. It is contagious and requires medication.
  • Alopecia areata: hair loss in which the immune system mistakenly attacks the hair follicle; it is not contagious.

A practical clue for telling them apart: in fungal infection the skin is scaly, flaky, red, and sometimes tender; because the hairs break at the root, the area looks "shaved." In alopecia areata, the skin is completely clean, smooth, and normal in color. Still, diagnosis by eye alone is not always possible; examination, dermoscopic evaluation, and, when necessary, fungal testing of a hair/scale sample are performed.

Why Does Ringworm Occur in Children, How Is It Transmitted?

Scalp fungus is most commonly seen between the ages of 3 and 10. Crowded environments, warm-humid weather, and sharing personal items increase the risk. The main routes of transmission:

  • Child-to-child contact: school, daycare, boarding environments
  • Shared items: combs, brushes, hair clips, beanies, hats, towels, pillowcases
  • Barbers/hairdressers: clipper and scissor blades that are not disinfected
  • Pets: especially cats and puppies (if an animal has a round patch of hair loss, be sure to have it seen by a veterinarian)
  • Carrier family members: parents or siblings who carry fungal spores without showing symptoms

For this reason, when a child is diagnosed, it is necessary to review not only the patient but also the other children in the household.

Symptoms of Ringworm: What Should You Watch For?

Tinea capitis does not look the same in every child. The most common presentations:

  • Round/oval bald patch with clear borders: may contain remnants that look like black dots, where the hair has broken off at the root.
  • Heavy flaking: stubborn, one-sided scaling that can be confused with cradle cap or dandruff.
  • Itching and tenderness: the child constantly scratches their head and is bothered when a comb touches it.
  • Swollen lymph nodes behind the neck and ears: a classic accompanying sign of scalp fungus; the finding families describe as "the gland is swollen."
  • Kerion: a raised, soft, inflamed, oozing, painful swelling. It is often mistaken for an abscess and given unnecessary antibiotics; however, the underlying cause is still fungal and it requires urgent evaluation.

It should also be noted that flaking on the scalp does not always mean fungus; we covered the yellow, greasy crusts of infancy in detail in our article on seborrheic dermatitis (cradle cap) in babies. In red, itchy, dry, and widespread rashes, atopic dermatitis (eczema) should also come to mind.

Other Fungal Infections Seen in Children

Fungus does not only affect the scalp. Other conditions we commonly see in childhood:

Tinea corporis (body ringworm)

Ring-shaped lesions on the trunk, arms, and legs, with a raised, red border and a paler center. They grow slowly and itch. They usually heal within 2-4 weeks with cream-form antifungal treatment.

Tinea pedis (athlete's foot)

Seen in school-age children and adolescents, especially those who play sports. The skin between the toes turns white, cracks, and itches; foot odor increases. Poolsides and shared showers are important transmission points. You can find practical tips on pool and sea use for babies and children in the summer months in our guide to pools, the sea, and sun for babies and children.

Tinea unguium (nail fungus)

The nail thickens, yellows, and becomes brittle. It is rarer in children and treatment takes longer; it must always be started with a confirmed diagnosis.

Candida infections

In babies, it appears as thrush in the mouth or as a stubborn, red rash with small blisters at the edges in the diaper area. You can check our article on diaper rash in babies to learn how to distinguish it from ordinary diaper rash and for the correct care routine.

Pityriasis versicolor (tinea versicolor)

In adolescents, light or dark, slightly scaly patches on the back, chest, and shoulders. The difference becomes more visible in the sun. It can take months for the color difference to return to normal after healing; this does not mean the treatment failed.

How Is It Diagnosed?

Examination is usually enough to guide the diagnosis. When needed:

  • Dermoscopy: broken hair shafts and the typical comma/corkscrew-shaped hair changes can be seen.
  • Direct microscopic examination (KOH): demonstrating fungal structures in a scale/hair sample.
  • Fungal culture: identifies the causative organism; can affect the choice and duration of medication. Since results can take weeks, treatment is usually started without waiting for the result.

Applying cortisone creams before diagnosis distorts the picture and "masks" the fungus, making diagnosis harder. For this reason, I do not recommend trying cortisone cream at home on rashes of unknown cause.

Treatment of Ringworm: Why Isn't Cream Enough?

The most critical piece of information is this: cream or shampoo alone is not enough for scalp fungus. Because the fungus settles deep in the hair follicle, the medication needs to reach it through the bloodstream; treatment is done with an oral antifungal medication.

The basic principles of treatment:

  • Systemic (oral) antifungal: chosen by the physician according to the organism and the child's age. The duration is usually 6-8 weeks, and longer in some cases.
  • Antifungal shampoo support: shampoos containing selenium sulfide or ketoconazole reduce spores on the hair, lowering transmission; they are not curative on their own. They are applied 2-3 times a week, left on for a few minutes.
  • Regular follow-up: treatment that is interrupted or stopped early is the most common cause of recurrence. Clinical improvement does not mean the fungus has been completely cleared.
  • Additional treatment for kerion: in the inflamed picture, the physician may add a short course of additional medication if needed; "draining the abscess" on one's own should never be attempted.
  • Household screening: other children in the same house and any pets should be evaluated.

For body, groin, and foot fungus, topical (cream) antifungals are usually sufficient; continuing for 1-2 weeks even after the lesion heals reduces recurrence. Oral treatment becomes an option in widespread, multi-focal, or recurrent cases.

Scratching an itchy fungal area with the nails until it bleeds can allow bacteria to settle and turn it into an infected wound; we detailed the signs and management of this situation in our article on infected wounds and skin infections in children.

What to Do at Home to Prevent Transmission

  • Make combs, brushes, hair clips, towels, beanies, and pillowcases personal to each individual.
  • Change pillowcases and towels frequently and wash them in hot water.
  • Clean combs and brushes with soapy hot water; replace them at the start of treatment if possible.
  • Do not share slippers for foot fungus, walk with slippers in pool/shower areas, and dry the feet thoroughly, especially between the toes.
  • Prefer cotton, breathable socks and underwear; do not leave sweaty clothing on.
  • If a pet has an area of hair loss, have it seen by a veterinarian.
  • There is no need to stop attending school: the child can continue going to school once appropriate treatment and shampoo application have started; it is enough to inform the school/daycare.

Common Mistakes During Treatment

The behaviors I most often encounter in the clinic that delay healing:

  • Stopping the medication once the lesion shrinks. Even if the appearance improves, the fungus can remain alive in the hair follicle; treatment stopped before the full course is completed returns as a relapse within a few weeks.
  • Using another child's medication. The dose of oral antifungal medications is calculated based on the child's weight; medication should never be used on a neighbor's or relative's recommendation.
  • "Silencing the itch" with cortisone cream. The itching decreases, but the fungus spreads, its borders blur, and diagnosis becomes harder.
  • Shaving the hair down to the scalp. This is not necessary for treatment; it can make the child feel bad at school. What is needed is medication and antifungal shampoo.
  • Applying herbal mixtures, vinegar, or toothpaste. These irritate the skin and make it easier for bacteria to settle on it.
  • Not coming to follow-up visits. Treatment duration can be extended depending on the organism and the response; this can only be assessed at a follow-up visit.

When Should You See a Doctor?

Have your child seen by a physician without delay in the following situations:

  • Any bald patch on the scalp that is flaking, red, or where the hair is breaking at the root
  • The area growing quickly, becoming raised, soft, oozing, or crusted (suspicion of kerion)
  • Accompanied by fever, or the glands behind the neck and ears becoming swollen and painful
  • Ring-shaped lesions that do not resolve with cream over 2-4 weeks, or that recur or spread
  • The lesion developing a yellow, honey-colored crust, with the surrounding skin becoming warm and red (secondary bacterial infection)
  • Thickening, discoloration, and deformity of the nails
  • In babies, a stubborn rash in the diaper area with blistered edges lasting longer than 1 week
  • Any suspicion of fungal infection in children with an immune-suppressing illness or on immune-suppressing medication

Skin findings usually need to be assessed together with the child's overall health. For this reason, planning fungal treatment together with well-child follow-up visits, where age-appropriate growth and development are tracked, also helps us see the underlying causes of recurrent infections.

In Summary

Ringworm is a common and treatable fungal infection of childhood. It does not go away with cream and shampoo alone; it requires oral antifungal treatment for a sufficient duration. When diagnosed early, the hair grows back; when delayed, the risk of permanent scarring increases. For this reason, every stubborn area of flaking and hair loss on the scalp should be taken seriously.

You can book an appointment in Gaziantep for a detailed evaluation of your child's ringworm or skin fungus complaint; if you would like information about the examination and follow-up process, you can review our Gaziantep pediatrician page.

This content is for informational purposes only and does not replace a physician's examination.