A fungal infection is an infection caused by a fungus. Fungal
infections may affect the skin (for example, athlete's foot or jock itch),
nails (for example, fungal nail infections), or hair (for example, ringworm of
the scalp and beard).
Fungal infections are usually treated by
putting medicine directly on the skin, nail, or hair (topical medicines).
For severe cases, oral medicines (pills) are used.
cause problems for people include yeasts and molds.