There are many worthwhile charities for RSD. The one I am the most familiar with and seems to do the most good is:
The Reflex Sympathetic Dystrophy Syndrome Association (RSDSA). Their website is
http://www.rsds.org/index2.html if you would like to check them out.
Like I said. There are many I'm sure, but this one I personally am aware of the things they do and good works and successful campaigns so far. I think when you look at them you'll agree.

Thematrix777