Most ringworm cases can be treated by over-the-counter antifungal medications, such as miconazole and clotrimazole, which are available in lotions, ointments, sprays and powders, according to MedlinePlus. Severe cases may require prescription antifungal medication, such as ketoconazole, and antibiotics may be necessary to treat secondary infections.
When treating ringworm, the skin should be kept dry and clean at all times, and loose clothing should be worn to avoid irritation, states MedlinePlus. Clothing should be changed and washed daily to prevent re-infection. If other people or pets in the household are affected, they should all be treated to prevent cross-contamination, as ringworm is highly contagious.