For widespread ringworm, your doctor may prescribe oral antifungal medicines such as itraconazole or terbinafine, along with antifungal creams such as miconazole or clotrimazole. It is important to keep your skin clean and dry, wash clothes and towels regularly, and avoid sharing personal items to prevent the infection from spreading. Treatment usually lasts a few weeks. If your symptoms persist or worsen, please follow up with your doctor.