Yeah, that is a tough question! I have had RSD/CRPS for just over 22 years now and wonder the same thing. I was lucky enough to be in remission for many years and when I came out of remission, it still stayed in just my face. Then in 2009, I injured my hand and the spread began and it is now throughout most of my body. Unfortunately mine is still progressing. But everyone is different.
I hope and pray that yours stops progressing and you get some relief!
Nanc