Hello, I've browsed this site for a few years now but I come today asking for some advice for my friend. I could not find anything pertaining to his issue. Friend has been i.v.ing suboxone for about the past year. He has lost almost all usable sites except a few in hands. He got h today and tried to pull it back got blood but pulled out. Added water in the syringe so the blood didnt clot right away. Got back in the site maybe 10 minutes later and now the site is swollen and red.The site is between pinky and ring finger nuckle on top of hand. Swollen on top of hand and between nuckles. Is it just a missed shot or did the blood in the syringe possibly cause the issuse? Rubbing seems to help some.