I've had five, and no issues at all. Two were under anesthesia, so he could inject deeper. Twice he injected into both my sacroiliac. All have brought relief, the time they last depends on how frequntly I do more than my body can tolerate. My pain levels are greatly reduced, but my symptoms are not gone. My diagnosis was not made for nine months, so you do have a better shot at retraining your brain, in my humble opinion.

With a prayer for pain relief,
pat