I have RSD/CRPS . (they are the same thing but CRPS is the new name they've given it)Mine is in my left hand/arm from a wk injury. After dealing with this for 2 yrs, I did go through with the spinal cord stim. My trial was 4 days and helped so much. I've had it a yr and a half now and could not live without it. Mine is a succes, i also take Lyrica, Cymbalta, Mobic, and Flexeril.