Yep, had that one. I was sedated the entire time the procedure was being done and don't remember feeling anything. I did have some pain relief in my left arm, wrist but I did have a rare side effect. After that , since I was so nervous about it, the doctor did not make me have any more that went in through the front of the neck. I had two that went in the back of the neck with minimal relief, but no side effects. It is a good way to see if your RSD is receptive to treatments other than drug therapy. Talk to your doc and the anethesist (sp) about your needle phobia and they will help you out. I have a real problem with being physically restrained and let them know this and the put me out before they restrain me. Lisa