its submucosal fibrosis.is associated with areca nut chewing.Maintain proper oral hygiene
. take diet with foods rich in vitamins
A, B complex, and C and iron.treatment of oral submucous fibrosis
depends on the degree of clinical involvement. If the disease is at a very early stage, cessation of the habit is sufficient.go and meet a dr now.Moderate-to-severe oral submucous fibrosis is irreversible i.e treatment very difficult.