Ringworm in hair treatment: what to know

The right treatment depends on whether fungus is limited to the skin or has entered the hair. Creams can help a ring-shaped rash on nearby skin, while scalp hair infection often needs medicine taken by mouth. A medicated shampoo may reduce surface fungus and transmission, but it is not always enough on its own. Treatment choice can depend on age, other medicines, liver health and the clinician’s examination. Do not share prescriptions or stop early when the itching improves.

Follow the prescribed schedule and tell the clinician about allergies, pregnancy, chronic illness and regular medicines. Use any recommended shampoo as directed, wash hair tools and bedding, and avoid close sharing of hats, brushes and towels. Photographing the area can help track change, but do not use photos to diagnose yourself. See [Oral Antifungal Treatment](/treatments/medical-dermatology/oral-antifungal-therapy/) for treatment context.

Contact a clinician if hair loss is increasing, the scalp becomes painful or swollen, or drainage or fever appears. Reassessment is needed when symptoms fail to improve, return after treatment, or cause side effects such as a severe rash, yellowing of the eyes or skin, or unusual illness. Do not delay care for a child with suspected scalp involvement.

Which medicine is appropriate for the scalp and hair? How long should I use it? Is monitoring needed with this treatment? When can shared hair tools be used again?