Ringworm is a fungus infection of the skin. It often shows on the scalp as round or oval patches of baldness or scaly skin. The circular patches usually spread along their outer borders while clearing at the centre. The rash is sometimes shaped like a ring, which is why it's called "ringworm."
Sometimes the infected area is inflamed, reddened, crusty, and tender, with small swollen bumps. Ringworm is usually treated with medicines taken by mouth.
Current as of: July 2, 2020
Author: Healthwise Staff Medical Review: Kathleen Romito MD - Family Medicine Adam Husney MD - Family Medicine Martin J. Gabica MD - Family Medicine