Dr. Oz said that cracks in your heel usually form between the skin on your leg that has hair on it and the bottom of your foot where there isn’t hair. These cracks in your heel are caused by wearing shoes without backs or by walking around without shoes on. Calluses build up and the result is a cracked heel. Dr. Oz’s home remedy for cracked heels is to slather on petroleum jelly Vaseline or moisturizing lotion, put on some socks, and sleep that way overnight. This has saved my feet many times!