My Father Around 54 Years. He Had The Habit Of

My father around 54 years. He had the habit of chewing Gutka for past 15 years. From past 6 months there is a growth in left cheek. He is affected with Buccal mucosa cancer which is in stage 4. Here, my question is are there any possibilities to cure him in Ayurveda or any other medicine without operation?
Please help us.