Has anyone else gotten an injection in their back for the limb pain and ended up feeling worse? My CRPS started in my shin and has extended down into my foot. It's been going on for 2 1/2years now. I just finally decided to try the nerve block a few weeks ago because it seemed that many people found relief from it. Two days after I thought it worked. My pain level was down quite a bit. However, the next day and most days after have been excruciating. My walking and pretty much everything else are extremely limited, I can't sleep well. This is miserable.