Harvard Health Letter

Toenail fungus: Drill to kill

Delivering antifungal medicine through holes in the infected nail may make it more effective.

Fungi thrive where it's dark and damp, so you'll find them growing in caves, basements — and the tissues of feet. Shoes and socks are ideal, if unintended, incubators: They keep the light out and trap sweat and other moisture in.

Athlete's foot is a fungal infection that often affects the skin between toes. Conscientious application of an antifungal cream — including over-the-counter products such as clotrimazole (Lotrimin) and terbinafine (Lamisil) — will clear up most cases.

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