Ringworm

Ringworm, common fungus disease of the skin of humans and animals; it may also affect the hair and nails. Ringshaped raised lesions occur; temporary baldness is seen on hairy skin, and the nails may disintegrate. Athlete's foot is ringworm of the toes, while tinea cruris is a variety that affects the groin. Treatments include topical ointments and systemic antifungal antibiotics.