Hi and Welcome! This is a great group here!.
Can you get a referral to a good pain mgt. Dr. who understands RSD/CRPS? Sounds like you need to persue and start trying every type of treatment you can A.S.A.P! Nerve, blocks, SCS, Accupuncture, Calmare. There's lots of experience and advice here regarding treatments.

I was given good advice early on with this: "You must be your own best advocate with this". Please be as pro active as you can!
I'm thankful mine has not spread more than it has. I credit the nerve blocks. I've had 14 of them now.

Keep posting!