Hi, For ur ulceration u can take Kenacort Ointment for relief. According to your symptoms your OSMF might be aggressive. You might need Biopsy as well. Stop the habits first and go to Dentist.

Visit MDS oral surgeon or MDS oral pathologist or MDS oral medicine and radiology.

Quite common for tobacco and pan chewers to experience this.

Dr Enosh Steward here Oral & Maxillofacial and Facial Plastic Surgeon, Vadodara. First or all, the ideal person to deal with this would be an oral and maxillofacial surgeon. Now as you have a long history of pam masala chewing, what has happened is the mucosa of your cheeks have got atrophic getting fibrous adhesions in the submucosal layer leading to reduction in mouth opening. And due to atrophic mucosa, any hot or spicy stuff you eat, you would get burning sensation.

Namaskaram Grey pigmentation can be due to few conditions, which can be confirmed upon complete investigation by biopsy and evaluation of your oral cavity. It's a condition that occurs on constant irritation to your cheeks, commonly because of smoking and tobacco use,pan masala, other causes include rough teeth surfaces, injury, alcohol etc. A habit of 10 years is an irritation and trauma since ten years, it has been manifesting from that long, thus it appeared even after cessation of habits. It can be a condition which has high chance of turning into an oral cancer, burning sensation is experienced because of it, but not to worry, a dentist is well equipped to treat this issue properly and resolve your patches. Completely stop intake of pan masala and smoking.take a vegetable and fruit rich diet, especially the ones with abundant vitamin A. Immediately visit a dentist. Team shambhala.

Better you visit an oral medicine MDS department, go to some dental college which is near to you so that you can get final solution