I too have RSD in my face and eyes it got so bad the swelling hemoraged in the back of my eye my mom was so scared as it looked like my eye was popping out if my face. I wish I could say there is an easy way to diagnose or treat it. I have full body RSD, sarcoidosis of the live and lungs, hypothyroidism, and thyroid cancer. The RSD in my face I treat just the same as my other rsd if it gets bad then I go to the ER. Prednisone a steroid does help when I have lots of swelling now I am on it all the time to reduce the swelling in my liver and lungs but if it gets worse then they up the dose while in the hospital as if they give it at home I have other complications. Many eye specialists arent going to be the ones to diagnose the rsd as they didnt with me in stead they thought I haed a sudo tumor of the brain where spinal fluid fills up and puts preasure on the eyes but of course that wasnt it.

Sam