I am an iv drug user (only meth nothing else) i had a needle go through the vein and it blew it as well as leaked alot of the drug into the surrounding tissue. it's read and the skim is tight and verry painful and warm to the touch. what do i do?

You don't say now long this has been going on. If under a day or so, warm compresses might be sufficient. If longer, it's likely a developing abscess that needs antibiotic treatment and perhaps surgery to drain it. See a doctor ASAP, e.g. an urgent care center. Do it immediately if you have fever or a red streak extending up the arm from that area. Good luck.

If this has been persistent over 3-4 days, it is imperative to be seen at ER or Urgent Care Center in view of potential infection and risk of spreading cellulitis. Consider that your predilection to drug abuse is a road to innumerable complications and problems, and perhaps at this time seek a drug rehabilitation program ASAP.