A toenail fungal infection typically occurs beneath the surface of the nail, says the American Podiatric Medical Association. Damp areas from swimming pools to locker rooms heighten the risk of getting a toenail fungal infection.
Typically after infection, the nail will thicken, look deformed, smell foul and become darker. If ignored, the infection can spread and impair your ability to walk.
An over-the-counter antifungal agent may get rid of the fungus, or a stronger prescription medication may be needed.
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