I just got my 2nd SCS in June because my RSD spread from my legs to my wrist now. I went through 5 stellate ganglion blocks and 6 bier blocks first, and I was still really reluctant to go through everything to have another SCS put in, as well as to have to devices in my body, etc. But in the end it was following the pattern with my legs in terms of only very temporary relief from treatments, so I knew that logically the SCS for my wrist made the most sense. So I sucked it up and went with the trial, and now I have my 2nd stimulator which is working well.

You should bring it up with your doctor, he/she might want to try more conservative treatments first but it's definitely a possibility to think about!