SWIM just crushed up 2 of the oxycontin generic 20 mgs. mixed with warm water, filtered thru cotton. clean, fresh works. got a great shot, I was sure the vein was there (blood on pullback). However, now I think they may have missed the vein partially, because I have a lump there now. No air bubbles or anything went in, and I feel fine. Been at least 10 mins now. So SWIM musta IM'd at least a good portion of the dose. will SWIM be ok? I have heard of "heroin blisters" forming this way. thanks to all for all info asap!