I did OT at Cleveland Clinic. I had rsd in my legs only at that time but it has spread. I did not have good results in PT in general but that is separate and I am not sure about the whole agressive approach either but everyone is different. In terms of OT there they had different rooms and like courses almost of everyday things from doing laundry,shoveling, going grocery shopping etc. Also if you had lets say a hobby you gave up due to this they helped to maybe restart it. You also were supposed to do the items in a proper manner. For example I have other areas that are in pain because I rely on an area or use my body in a wrong manner to protect the rsd pain area.
I think it is so key who ever you work with deals with RSD a lot and maybe you can even speak to a couple patients.
Hope you get relief