About 30 mins ago, my brother did some heroin VIA I.V. He was having trouble getting it to register and I noticed a good vein on this hand. It's his right hand on his ring finger. It was up by his knuckle. He registered quickly and plunged it home. Shortly after he said his hand was going numb and I noticed it was swelling as well. It swelled up pretty big and hasnt really gotten any better. To me it did not seem like an artery hit because I seen it fill and seen the color of the blood. He also reported a rush imediately and said it didnt burn when he did it. Any ideas? Do we need to go to the hospital?