Hi Andrea,

Most of what you ask, I don't know. I can say what happened with a nerve block with me. Because my RSD is in my arms, it was done in a different place than your daughter. But, I can say, I did not have any relief from the nerve block. There was no response from my arm at all. I was not able to return to work after the block. It was done on a Friday so on Saturday I was still not feeling well. I had the normal side effects of the block, but went away in about 6 hours. Note: I had lidocaine, not what your daughter had.
It was thought that I had RSD for about 3 years before it was diagnosed or treated. So, that might have something to do with it.

Frogga (another member here on the board) may be able to help with some of the other questions that you have.

My RSD has not progressed like your daughter, but I do believe that it could spread fast with an injury.

Good luck at your appointment. Please let us know how you and Alison are doing.