
What is ringworm?
Ringworm is a common fungal infection of your skin or nails. Ringworm has nothing to do with worms. But the rash it causes can be ring-shaped. Therefore the infection has come to be called ringworm. Doctors call these infections "tinea."
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You can get ringworm on your feet (athlete's foot), face, scalp, body, or nails
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Ringworm on your skin causes an itchy, scaly rash that may be ring-shaped
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Ringworm of your nails usually is on your toenails, and it makes them turn thick and yellow or white
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Doctors usually tell if you have ringworm just by looking at it, but sometimes they test a sample of your skin
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Doctors treat ringworm with medicines you put on your skin or take by mouth