I just had a RFA (nerve block) on Oct 2nd. In the past this procedure has helped BUT as of today Oct 12, I am still in pain. How long will it take for me to experience some type of relief? I have had continued problems with the piriformis muscle and this procedure has helped in the past, over a year ago was my last procedure. At present the pain is just as bad as before I had the procedure. I have taken medication for swelling and related issues but I have returned to morphine for pain relief. Could use some advise on this and look forward to pain relief. Please advise...