Similar experience for me. I was in the worst pain of my life, suffering from a herniated disk and sciatica. I got an epidural steroid injection and the pain co

Similar experience for me. I was in the worst pain of my life, suffering from a herniated disk and sciatica. I got an epidural steroid injection and the pain completely went away. I felt like I could run through walls, fortunately I didn't test that hypothesis. The relief lasted for about a week and then the pain started to come back but it was never as bad as it was before the injection. Fortunately steroid do more than just relive pain for herniated disks, they actually stimulate healing as well. But the doctor told me in no uncertain terms that this wasn't something I could do again anytime soon, it's a one-off.