I had several Ketamine infusions. It was not for CRPS but for Cervical issues. This medication really helped me for a number of months. I have also done some research on it. This has been used for CPRS extensively for our troops who are injured. There has been good success, and reports of remission. Finding a location that does them seems to be the bigger issue. JAMA, a medical journal has frequent articles about this medication. I wish you all the best. ginnie