I personally know people who have had some relief from low dose ketamine infusion which is done here in Australia. The patient is conscious and in fact is able to walk around. However a friend who had it recently had very disturbing hallucination's. This upset her a great deal. She did have a great pain reduction and this has lasted many weeks. I think if you have this kind of treatment and then get stuck into physical therapy, yu would have a good chance of a great outcome.
jeisea
http://www.crps-rsd-a-better-life.blogspot.com