very bad,you must defintely stop it ,you said your mouth opens only upto a finger,you are suffering from oral submucous fibrosis,in which oral mucosa is hardened loss flexibility look like marble,you must consult your dentist because it can lead to oral cancer ,there are many medical and surgical treatments are available to treat this condition
Answered by
Dr. Lalit
, an ibibo Citizen,
at
12:16 PM on October 09, 2009