Once a scab develops, I find myself uncontrollably picking at it, so it usually never heals or takes an
extremely long time or another scab to develop to stop. Right now, I have a total of six scabs that I have created on my scalp. When I am picking I can't necessarily say that it relieves stress like I have found on some of the other web sites, but more of an obsession that I can't control. I have been treated for depression and PTSD, but have never mentioned my compulsive picking.