You can help prevent athlete’s foot by following some simple rules:
Wash your feet daily.
Dry your feet thoroughly, especially between your toes, after bathing.
Avoid tight footwear, especially in the summer. Sandals and “flip-flops” are the best warm weather footwear.
Wear cotton or synthetic running socks that absorb sweat and change the socks daily or more frequently if they become damp.
Dust an antifungal powder on your feet and into your shoes.