If your diagnosis is confirmed as RSD/CRPS, while one med may not work, another may. I was put on neurontin initially, and then was prescribed a host of med cousins (in turn, not all at once), in hopes that one would help more than another. My neurologist told me Lyrica has a 1 in 3 chance of helping, and fortunately I was a one in three. It saved me and decreased my pain enough for me to do the exercises that I am sure were part of the healing process. Water therapy -- that helped too. The thing is, the process can be so slow and sometimes the increments of improvement are so minute it seems like nothing's happening. It helped (me) to get used to expecting slow results, meaning sometimes I wouldn't see the results until two months into a treatment of some sort, but there was still progress. Just in baby baby steps.