Betamethasone soluble 500 mcq tabs. I’m also on one doxycycline 100 mg caps. Daily. Plus 1500 mg b12. Originally it was thought I had shingles. Then lichen plan us. After biopsy turns out that I have pemphigoid mucosa. So my mouth blisters badly than have ulcers. Got so bad I used babies toothbrush to clean teeth and progressed to sonic toothbrush. So whist I do not have the same condition as u I hope this helps.