Hello, Welcome Thanks for consulting HCM,
You have mentioned that you have habit of chewing gutka,
smoking, from few years , now you have white patches, dont worry much it can be controlled , and removed, but this lesion treatment takes time,
1. Quit habit, dont Chew tobacco, dont smoke.
2. Apply ointment local application of
Triamcinolone Actonide paste on white patches
3. Take capsule
Vitamin A , capsule Vitamin B once a day ,
You take this medications for one week if your problem continues then
consult dentist go for
biopsy and further investigations
Hope this will help you.