Hello and Welcome Doodles,

You will find much support here and useful info.

Ketamine is an anesthetic that blocks NMDA receptors. It is used to combat chronic pain and is one of the few treatments that shows measurably good results for CRPS pain in studies. It works differently from opiates, blocking receptors in the brain and spinal column for NMDA that get turned on with pain and sometimes don't shut off. There are several protocols for it's use and several of us here receive infusions in different forms. Pain management would be the specialty to give these.

I am getting low dose and documenting my experience with them here.
http://neurotalk.psychcentral.com/thread220186.html

Here is a great video with loads of helpful information from a compassionate and highly regarded CRPS physician. https://www.youtube.com/watch?v=s3LKhOZ8mAM

If you want, post a little something on the general CRPS forum to say hello so the most members can see you and welcome you to the group.

Sending hugs,