I am not sure what type of brace you are talking about but with rsd I have always heard it should not be in a brace. Before my dx I was in an airboot for about 3 months and it made my condition worse cause I lost range of motion and it became so sensitive too. My rsd areas I don't let anyone touch even doctors. When I was at the pain program there were type of treatments to help desensitize slowly. Like taking different materials to the area. I did a fluidtherapy etc. Talk to your doc cause everyone is different in terms of treatments