Hi Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concern. Lichen planus is a chronic recurrent rash of unknown cause. Treatment of oral lichen planus :- 1.Topical steroid gels such as Triamcinolone 1% may be useful. For localized, itchy, thick lesions, injections of corticosteroids can be given. 2.In more severe cases, physicians may recommend such as oral corticosteroids that is prednisone(solone tablets) or metronidazole (Flagyl). 3. Anti-oxidants such as alpha lipoic acid is given 4. For painful lesions, the use of special mouthwashes/gels containing a painkiller (such as lidocaine) before meals may provide some relief. Unfortunately Lichen planus usually persists quite a while before resolving. The average duration of the condition is four years. In some cases the disease heals by its own As per your 2nd Query, you could consult a dental surgeon. he would evaluate your teeth by doing xrays & advice RCTs if neccesary Hope this information helps.. Don t worry you would be fine