If you're worried about accidentally peeing on your feet, well, at least you're in the right place for a rapid wash. And if you have a cut or other wound on your foot? "It's probably not a big deal," said Dr. Brahmbhatt. "There are people that pitch using urine as an antiseptic; i.e., when you have an open wound, you can pee on it to help avoid infection. But the science behind this theory isn't particularly strong."