I had nerve pain numbing shots several years ago. Helped for long periods of time. Most recent was a year ago. Having no problem with severe pain now. Just soreness pain if I bend down from waist. Sitting - bending down, no problem. When I get pain from bending down usually goes away after sitting in straight back chair for period of time. Cannot sit in chairs like couches, etc. Must always sit in straight back chairs, cushion or not. Even in car seat, must be totally erect. My problem is herniated disk in lower back - so far. From childhood.