MRI OF LS SPINE

I HAD AN MRI OF MY LS SPINE LAST WK. IT SHOWED ARTHRITIS OF SPINE. PAIN CLINIC WANTS TO INJECT MY SPINE WITH PAIN MED WHICH WOULD LAST UP TO 3 MONTHS. IT IS A 20 MIN PROCEDURE AND THEY INSERT A NEEDLE INTO THE SPINE AND TAKE PICS AND THEN INJECT WHEN THEY FEEL IT WILL BE MOST BENEFICIAL. (THE ALTERNATIVE WOULD BE TO TAKE THE ORAL PAIN PILLS OR PAIN PATCH BUT I AM AFRAID OF GETTING ADDICTED). I AM SCARED TO DEATH OF GETTING THIS NEEDLE PROCEDURE DONE. DID ANYONE OUT THERE IN BAND LAND EVER HAVE THIS DONE AND IF SO, CAN YOU PLEASE LET ME KNOW HOW YOU DID WITH IT? THANK YOU SO MUCH IN ADVANCE. I AM SO TIRED OF HAVING SCIATIC PAIN THAT RUNS DOWN MY BUTT AND BACK OF MY LEGS TO MY HEEL EVERY TIME I GO OUTSIDE TO WALK AROUND THE NEIGHBORHOOD. I WOULD HAVE THOUGHT IT WOULD HAVE IMPROVED AFTER LOSING SOME WT. BUT IT HAS GOTTEN STEADILY WORSE. WHY DOES IT HAVE TO BE SO TUFF FOR SOME OF US BANDERS WHO ARE TRYING SO HARD TO IMPROVE THEIR LIVES? JUST WONDERING?