Hello, I have had RSD when I was younger for 5 years and than in remission completely with no pain, medication or treatment for 8 years until a car accident caused it to come back again. Treatment has changes a bit.since I was younger and sympathetic blocks never really gave relief for me. So, I'm worried that 1.it wont work at all or it will only partial relief of pain or full relief for only an hour.or two. 2. If no relief the dr will say its in my head because the block went good. I'm soooo worried about it not working because it never worked well before and my dr is telling.me if these don't go well its a SCS. Just need to vent and get reassurance. My leg from knee down is twice as big as otber one, 10 degrees colder and major color changes along with other typical things. I haven't walked in a month now. I want this to work, but am trying to be realistic to what may happen if it doesn't. Sorry for the pity party. how have other responded to their lumbar sympathetic blocks?