I have submucous fibrosis, probably at a very early stage, since 2 years. I stopped eating supari 2 years ago. Also I have been taking medications like SM Fibro, Carofit plus. And it has benefited. My mouth opening improved from 3.25 cm to 4 cm. Also white coloration in my mouth also reduced. But 1-2 ulcers at a specific area (not exactly at the same point) come and go frequently. It is on top roof of the mouth at the back side where we swallow. Some white coloration still exists, even though improved since 2 years. Everything else is good. I am able to eat anything without any discomfort. The frequency the ulcer is reduced since 2 years but still they are frequent. My question - how can I cure those ulcers and is it malignant?