Wash feet frequently with soap and water, then be sure to dry them thoroughly; powdering the feet and between the toes after showering and drying can help keep moisture at bay.
Wear cotton socks and change them several times a day if feet are sweaty or moist.
Wear footwear made from breathable materials that allow air to circulate around the feet.
Never share footwear, socks, or footcare instruments such as nail files and nail clippers.
Do not walk barefoot in public areas with wet floors, including showers, pools, and locker rooms; instead, wear plastic flip-flops, slides, or shower shoes.
Avoid injuring the toenails, which can eventually develop into an infection.