If you've ever had burning and itching between your toes and noticed red pustules, you've probably experienced athlete's foot. Tinea pedis, or athlete's foot, is a contagious fungal infection normally found on the feet, toenails, and sometimes the hands. The fungus that gives you athlete's foot grows in warm, moist environments, and left untreated, can cause great discomfort. The fungus is often in locker rooms, shower areas, and around swimming pools. When you walk barefoot on a surface where the fungus grows, you can catch it. It's advisable to always wear some form of shoes when walking on warm, wet floors to help prevent catching athlete's foot. If you do have the fungus, use products like Lamisil or Lotrimin topical ointment, Desenex or Silka antifungal foot powder, or Ting athlete's foot antifungal spray with cool relief. For a more natural approach to treating athlete's foot, use spray-on tea tree oil.