Ringworm is a fungal infection of the skin that is common among children. It is caused by fungi that feed on keratin in the skin, hair, and nails. The fungi spread through direct contact with infected people or contaminated surfaces and items. Symptoms include itchy, red patches on the skin with sharp borders that may blister or ooze. Treatment involves over-the-counter antifungal creams or pills prescribed by a doctor if the scalp is infected. Ringworm can spread without treatment and cause additional skin infections. People can prevent it by keeping skin clean and dry and not sharing personal items.
