Skin Picking

I am new here. I was randomly searching the web for info on my "condition" as my husband calls it. I am 36 and I pick and tear at the skin at the bottom of my feet til they bleed, or til i cant walk, and i have been for a few years now. I used to bite my nails as a teenager but i broke that habit. Ive been told it was caused by stress but everything i do to relax doesn't seem to work. I am on medicine to help my OCD and Depression. I wear socks to help and my daughter will try to catch me and stop me as well.. Any ideas or pointers would be welcome...