Thanks for asking the query,
Chewing of tobboco have various hazards on health, it has carcinogenic potential,
it causes fibrosis of the oral tissues. So i would suggest you to discontinue the habit.
Other than this sore throat
and mouth can be vitamin deficiency
, anaemia, ulceration, physical and chemical trauma.
Direct examination of the condition by Dentist
will help in the diagnosis of the condition.
Take warm saline gargles, use antiseptic mouthwash gargles twice daily.
Go for symptomatic treatment of complete mouth scaling and polishing.
Hope this helps out.