Good morning. Does anyone have personal experience with a stellate ganglion nerve block? Good results? Bad results?

I'm scheduled to have one tomorrow for the RSD in my right arm. I am at my wits end and need pain relief, but I'm afraid this is just going to be one more things that does not work. My pain management doc metioned in passing the minor side effects, without any great detail. When I started reading, I thought well, holy crap, perhaps he could have given me just a tad bit more info that I left with.

Hope you all have a wonderful day. Any input would be greatly appreciated.

Maggie