Hi, my 18 year old has a problem with picking the skin on his arms and shoulders. When I first saw them I thought they were spots, but they are sores and scars from picking his skin when he gets anxious (which is all the time). They often bleed too, and in fact the problem first came to light when I noticed blood spots on his tops.
he gets really upset and defensive when I mention it (he says he is ashamed and does not want to talk about it). I find it really distressing (to me it's similar to self harm) and I don't know how best to help him.