EX-IV DRUG USER SCARS, LUMPS AND KNOTS

I AM AN EX-IV DRUG ABUSER {CRYSTAL METH} I HAVE THESE SCARS/REDDISH PURPLE MARKS IN LINES THAT FOLLOW THE PATH OF THE VIEN AND I HAVE HARD LUMPS IN MY ARMS. WILL THEY EVENTUALLY GO AWAY? IS THERE SOMETHING TO MAKE THEM GO AWAY LIKE NOW. THEY ARE VERY UNSIGHTLY NOT COMFORTABLE WEARING SHORT SLEEVES ANY MORE. WHAT IS THE LONG TERM EFFECT OF THIS IS THERE ANY FUTURE DANGER. LIKE ESPECIALLY IF I HAVE TO HAVE BLOOD DRAWN. ANY INFO GREATLY APPRECIATED, PLEASE HELP