Hi Granmmadur. I have had the Ganglion blocks. They did not put my RSD in remission, however when the RSD moves up my arm it did help to stop it and keep it at the lower arm area. I also wanted to let you know that with the limb that has RSD, do not let anyone take your BP, or have any needle injections, if you can help it. I learn that one from experience!! I also have a lower memory loss. My Dr. saids he feels it is from dealing with the pain and using the pain medications. Hope this helps.