Ringworm of the scalp — This infection, also known as tinea capitis, causes patches of hair loss on the scalp. It is especially common among children aged 3 to 9, particularly children who live in crowded conditions in urban areas. Scalp ringworm spreads on contaminated combs, brushes, hats and pillows, and it may occur in epidemics in schools and day-care centers.
Symptoms can include a diffuse, itchy, scaling of the scalp that resembles dandruff; itchy, scaly, round patches of hair loss on the scalp; black-dot ringworm, in which stubs of broken hairs form a dotted pattern on the scalp; or kerion, a thick, nodular patch of inflamed skin that may ooze pus.
Make an appointment to see your doctor if you have symptoms of ringworm that involve the scalp or beard. For other forms of ringworm, call your doctor to see if you should be seen in the office or if the problem can be treated over the phone.
If you have ringworm of the scalp or beard, your doctor may treat you with an oral antifungal medication, such as itraconazole (Sporanox) or griseofulvin (Grisactin and other brand names). You also will have to apply antifungal creams to your hair and scalp. Complete treatment can take up to two months.