LISTERINE FOOT SOAK by LISTERINE FOOT SOAKSoak your feet for 10 minutes and the dead skin will practically wipe right off. pumice gently if desired!!!1 Cup Listerine 1 Cup White Vinegar 2 Cups Warm Water Combine & Soak for 10 minutes. Sounds crazy but it works! Dead skin comes off as feet are rubbed in the solution.