Hi , first and foremost you should quit your habit of taking betel - nut and tobacco. Do you have burning sensation on taking spicy and hot food? also let us know what is your mouth opening (you can measure it with a scale between your upper and lower incisor teeth). Once, we have your stage of osmf (by mouth opening), we can start with the treatment. You can take anti
- oxidants tablets and get intra - lesional injection therapy of hyalonuridase, triamcinolone
, etc. You should visit an oral medicine specialist for its treatment.