Hi & Welcome, but I wouldn't wish CRPS on anyone!
I just want to add my support and back up what Bramledog said.
The Vit. C may help wound healing as well.
Like she said the best thing right now is to FIND a KNOWLEDGEABLE
Pain Mgt. Dr. & the same thing with a Physical Therapist when the time comes.
The 2 together can work with you to get the pain
manageable so the P.T. can help you learn to move correctly.

I remember when I was asked to "make a fist" 4 wks. after surgery.
I could barely wiggle a finger it was excruciating.
But Bram is right CRPS thrives on immobilization. Just start with
something, small, slow, gentle moves.
Research! There's lots of info. on here. If you haven't found it there's
a great place RSDHope.org. Many informative articles & news there.

AZDi, you're quite right about the movement thing needing to be slow and gradual, and I've clarified that in an edit in case it was coming across as too harsh!

I haven't typed so much for a while and just knew I'd forget something lol

Bram.