Foot fungus is hard to kill, and it can spread. Fungi-Nail Everyday Powder Spray stops foot fungus BEFORE it can spread. Even after you've cured a toe fungus infection, prevention is key to keep the fungus from coming back. When used daily, Fungi-Nail Everyday Anti-Fungal Powder Spray helps prevent most athlete's foot on the toes and the whole foot using the Maximum Strength anti-fungal active ingredient Tolnaftate 1%. This talc-free formula in a convenient powder spray is designed to help keep feet feeling dry & fresh, absorbing wetness to fight odor. Use as directed.