Hi Gabby! Have you tried vitamin c infusions? I had an ankle injury 8 months ago and my rsd started to spead to my ankle. It was bad. Then I had a set of vitamin c infusions and the ankle got a lot better. Alternative medicine centers have those kinds of infusions sometimes. There was a study that actually showed that giving large doses of vit c to patients after injuries, seriously lowered the likeability to develop rsd. So don't dismiss them as there are scientific studies backing them.Vit c works by activating circulation. I would give them a try.
Good luck and best wishes! Big hug!