I cut mine and peel off skin until I bleed. I do it all the time. My psychiatrist and I both feel since getting beaten as a child into blackness for cutting my arms I moved to the bottoms of my feet so I can do it undetected. I keep cutting until the pain is intolerable. I leave little blood trails around and require two to three pairs of socks to get around the next day. I've tried to stop and the only thing that seemed to help was Abilify but it go too expensive. I have a host of issues, this is just one of them.