NEWBIE- Looking for varuous advice incl. scalp picking treatment

I'm brand new here, but realize I've had skin picking issue for years now. As I type, my scalp feels sore (this is my latest area of concentration). It's horrible and I really need a hair cut, too, but I'm too embarrassed to go see my stylist right now. Does anyone have a tip for scalp treatments? I tried getting some neosporin in there but it's difficult with my hair in the way. I used to have some Neutrogena T-Sal shampoo around for my daughter's cradle cap, but I wonder if that would help heal my scalp skin. Anyone have any advice on this? What about scarring, too? My back is a mess. I still have a couple areas there that are raw and open sored but because I have migrated to my scalp, my back is starting to heal some, but I go thru neosporin like mad to attempt to heal it! The scars are bad, though. Scargel's are really expensive. Has anyone had any luck with Skin Bleaching type products like Porcelana? I know those are meant more for darker skin (I'm fair) with blotches, but I wonder if it would work for the skin picking discoloration scars I have on my upper back. Any advice would be great! I'm going to try to tackle this problem head on now that I know what is "wrong" w/ me. I suffer from depression and am on Zoloft already (have been for years) but my skin picking has not been helped by this so it looks like I'll need to find a good behavioral modification type program. My psych. doesn't even know about this!