Lichen planus

I was diagnosed about two yrs ago with lichen planus an auto imune disease they say it is very rare and not contagious yet my younger brother has it also. I have the skin lichen planus as well as oral lichen planus which affects my gums, cheeks, and tongue. It is very , very painful. I had a very large back surgery in April and I got lichen planus sores on my back as a result of the trauma from surgery my incision that is twenty inches long healed but my sores from lichen planus are still open. I don't know how to get them to heal and right now I have just developed an outbreak in my mouth. The pain is so deep in the nerves that I feel like my teeth are going to explode and I can feel my pulse under my teeth. I can't explain the pain and I am begging for someone to tell me if they found anything that helps with the pain. Also I never heard of lichen planus , what can I expect from this disease? How often will I have outbreaks? will it ever go away? Should I have my teeth pulled out or will dentures make it even worse? Not too many doctors seem to know much if anything about this auto imune disease.