In the event that the infection seems to be persistent, consult your physician right away. Even skin ringworm may occasionally require oral medication for cure. And parents of children and persons with medical conditions are advised to read product labels carefully and consult a pharmacist if they have any questions about use. Fungal infection of the scalp requires oral medication to clear the infection. Applying a topical ointment can kill the fungus on top of the scalp, but won't reach the fungus below the scalp at the hair follicles.
Early treatment is especially important with hair and scalp ringworm to avoid permanent hair loss.
If your doctor determines that scalp ringworm is the problem, an oral medication will be prescribed. Take these medicines with milk, NOT juice or water. Griseofulvin is best absorbed when it is taken along with something that contains fat. Take it with a meal, ice cream or a glass of whole milk. Representative treatment times for Scalp infection is 4-6 weeks.