Also called tinea pedis, athlete's foot is a ringworm (fungal) infection of the skin of the feet that can be picked up by contact with infected skin or with contaminated surfaces or objects. The infection usually affects skin between the toes or on the soles of the feet.
The affected skin becomes cracked, sore, itchy, and soggy. Sometimes, the infection spreads to the toenails, which may become yellow, thickened, and brittle.
Athlete's foot is unlikely to clear up by itself, but it can usually be treated with over-the-counter antifungal medications. If this treatment is ineffective, a doctor may prescribe a stronger antifungal drug.

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