Bumps on back of arms

I see there are no posts in here. I guess I'll start. My biggest issue is picking or popping the bumps on the back of my arms. I also pick at blackheads and acne. I cannot stop picking at the back of my arms, and I've tried everything to make it go away. I saw a new cream by eucerin I think specifically for back of arm bumps. Has anyone tried this? I would love to stop picking.