Stellate ganglion blocks are a great diagnostic tool (as others stated). If the dr does a SGB and you have a favorable response to it, it can confirm your diagnosis of RSD/CRPS. Also, your best chances of them being successful is to get them early on. I was diagnosed with RSD 23 years ago in the right side of my face. I was treated very agressively with SGB's and medications and this put my into remission for many years. After I came out of remission and had new injuries, it spread. The first thing I wanted was SGB's! They were not as helpful that go around because it was too late for me. I highly recommend them because they helped me so much in the past! If you decide to go for it, you need to do it asap for best results. Just make sure you have someone very knowledgeable administering them.

You do not need to have all of the symptons to have RSD/CRPS.

Personally, neurologists did absolutely nothing for me.

Wishing you the best,
Nanc