I cut myself...really badly in my arms...how can i cover it up.?

wear some kind of foundation over your arms, or always wear sleeves. I am an ex- cutter as well, and that is what i do. Ok, i dont see why u say u cant wear a jacket. If your dress is casual, a cut off, nice jean jacket would fit perfectly for that, and if your going fancy, find a color matching thin sweater that can go with it. But dont worry, or feel bad, and dont let some of the responses some of theese losers gave you get u down, keep your head up at that party regardless, ok?? If your cutts are healed, You can use foundation. Nothing is going to happen if they are healed.