This is a tough one. There is some research that suggests that bisphosphonates help with the deep bone pain for people with RSD so it could be something you could check into.

After my severe allergic reaction to pamidronate infusions I'm ruled out as a candidate for this class of drugs. Although my reaction is considered rare it was no fun and this class of drugs does have many risks.

I haven't found anything else to lower the bone pain but as others here suggest, heat is a life saver. I prefer to use my hot wax machine for my foot and hand.

Good luck.
MsL