Some time ago I had a burn with my ear that it felt like fire as well. For me that part did settle down though I do still get severe ear pain/pressure which they can't figure out. I went to my neuro and he did a brain ad ear mri. I did the lidocaine infusion but for me it increased my pain unless it was a fluke and we are all different. Have you called a major hospital near you or a teaching hospital neuro dept. I would explain you have rsd and see if they could suggest someone. I agree about taking something before the pain gets out of control. I wish I had more answers for you I am in a similar situation right now in terms of new symptoms and what typs of doctor to go to. Hang in there