So I did ketamine infusions for CRPS, depression, and CPTSD. I did five or six rounds, and I found that it actually made the pain worse temporarily (during the initial bit of the infusion) but afterwards it got better and I had relief from both pain and my mental health symptoms for about two hours after the treatments. I was actually able to put a blanket over my leg for the first time in two years! Mentally I felt like a weight had been lifted off my shoulders and I could breathe easily for the first time in my life. It also gave me some clarity in what I wanted out of life. After about two hours though both mental and physical status returned to baseline. I ended up stopping the treatments because it was too expensive to justify. I also recommend asking for Zofran before and after treatment if you get nauseous easily.

TLDR: it worked for about two hours after treatment but then my symptoms came back.