I have seen many post about blister, but no one has mentioned using a pumic stone at the end of a shower to remove dead skin. I have also found the pumice stone to energize the skin and it seems to help the healing. I just set the stone at the botom of the shower and go over the feet at the end. Small circles over the whole foot. There are also soaps that have abrasive additives in them that can help. Good luck.