thanks for your query
History seems that it could be due to oral submucus fibrosis(OSMF) or any Leukoplakic patch in oral cavity.
This is due to tobacco use. Quit tobacco as early as possible.
This condition of OSMF is reversible upto certain extent but if not treated in time may cause erythroplakia
, carcinoma in situ and so on.
just take preventive measures like stop tobacco, spicy and hot foods, alcohol.
Take mucosal soothening agents like tab Rebagen
, Do sucrafil gargles, it forms coating on irritable mucosa and fasten healing.
Take multivitamines also.
Thanks. take care