I Havent Used Meth In A Very Long Time But

I havent used meth in a very long time but a bunch of us ( my old crowd ) got togather friday and after drinking a while we decided to get high. Shot up just once then saterday evening the back of my hand started swelling, then sunday it never got much worse but not better either. Its slightly red all over but no streaks and I cant tell if its very hot if any at all. The injection sight was in the fold of my elbow and a cigg filter was used to draw it up. If I go to the Dr my wife will find out so I started antibiotics I had here at the house