Hello Rita and Welcome to Neurotalk!! I'm so sorry about everything that you and your fiance have and are currently going through ((hugs))
My name is Alison, I am 13 years old and I suffer from RSD in my left leg and right arm - If I can help you in anyway, please just let me know!
I really hope the Lumbar Sympathetic Block helps your fiance, please tell him I said "Good Luck" and that I hope he gets some much needed pain relief! I have heard a lot of people say that the Lumbar blocks can be helpful so I will keep my fingers crossed for both you and your fiance!
Please keep us all updated when you can!
Love,
Alison