I had four. The first three were one week part. The doc hoped to get me in remission with the three, but no go. The fourth was three weeks later. My foot felt great after the first one, but the complete relief only lasted a few hours. The pain when walking returned quickly, but the coldness and pain at night did not. After the fourth one, my doc and I agreed that I wasn't benefiting anymore. It has been about 8 months, and my foot still feels better than before the blocks, even though I felt that I didn't get great results in the beginning. Some of the pain at night is starting to return, so I am thinking about trying again.

I agree about wanting the great feeling I had right after the first one. I was disappointed that the relief didn't last longer. The doc warned me that the pain might feel worse for a short time when it wore off, because it might reset the brain's coping mechanism or something like that.

Sounds like yours rsd was more responsive to the blocks, so hopefully additional blocks will give you even better results. Good luck!