Hi amyp300. I too, also suffer with Dermatillomania, it rules my life. I mostly just pick my scalp, but I have sores all over my scalp and pick and pick until it bleeds. I get some sort of satisfaction from the pain. I have tried to stop picking, but I get really angry and OCD if I don't do it.
My doctor says that skin picking is a form of self harm and is closely linked to anxiety.
The only thing that helps me to stop doing it is cutting my nails right down or getting acrylic nails done. For some reason, I can't pick when I have acrylics, but other than that - I don't know how to stop doing it so any advice would be great.