Are you doing intermittent fasting or Keto? This is my story. I also have Oral Lichen Planus. I have had breakouts in my mouth for over a year and a half. I have been doing intermittent fasting and keto for 8 years.
Theses breakouts in my mouth were devastating I couldn't eat and they hurt all the time and were mental consuming because I could not find answers. I actually didn't even want to live any more because I couldn't find an answer and it hurt and was such a problem.
I also have MCS (multiple chemical sensitivity) don't know if this is part of it.
The strange thing is this year I had a family reunion and I went and ate like normal people do, I did not intermittent fast or watch what I ate. I ate junk food and carbohydrates. Not being mindful because I was with family and just didn't want to have to monitor my eating.
My mouth cleared up. It has been over a month and I have not had a breakout.
I have no idea what was missing in my diet that my body needed but my mouth is now clear.
I cannot help anyone because I don't know why my mouth cleared up. BUT if you relate to this maybe it will help.