I use meth in an IV the other day.  The needle was new & never used, blood registered in the syringe when I pulled the plunger back. I stopped when I felt stinging and checked to make sure I was in the vein, and I was. Very mild stinging continued for the last 7 to 8 units of the shot. When no knot came up I thought it would be fine. Four days later, I have a knot that grew from the size of a dime this morning to a half dollar and its very painful.  I am hoping for a home remedy. I have soaked in hot water tonight, but it feels like its getting worse by the minute.
YOU CAN USE ICE PACKS 4 HOURLY.TAKE PLENTY OF WATER .MINIMUM 2-3 LIT RES A DAY .DO NOT WORRY THE PAIN WILL SUBSIDE WITH  IN 1-2 DAYS.THANKS