I pick at blemishes on my arms and face fairly regularly, however, it is nothing out of control. But there have been several occasions where I have picked my face/body so bad that I locked myself in my apartment for days and now have mild facial scarring. Now that I have my picking under control for the most part, I can look back and I have learned that my ADD medicine caused my insane picking spells. I took my Concerta today, but have had no severe urges yet. I believe that the combination of Concerta+exhaustion was what did it. I think that I would be so tired and want to sleep, but the stimulants in the medication would keep me awake, so instead of sleeping, I would go into the "picking trance" and completely annihilate my skin. Has anyone had similar experiences with stimulants in drugs?