Can't stay long, but there are a couple of threads you should be aware of:
CRPS and autoimmunity http://neurotalk.psychcentral.com/sh...ght=autoimmune
parvovirus B19: another predisposing factor for CRPS? http://neurotalk.psychcentral.com/sh...ght=autoimmune
There are a number of articles in there that are worth checking out.