Tobacco chewing, osmf, big ulcers on

6 months back I was diognosed as OSMF III, Suggested antioxidants and kenakart oral ointments., Symptoms sunken cheeks with white patches and bands . Lot of burning sensation inside the cheeks and mouth. Now since 4 months, ULCERS ON LIPS UNHEALING ROUND UPPISH AND TRANSPERENT AND LIPS ARE THICKEN AND NOW LIPS BECAME PAINFUL FROM ROOT OF THE TEETH, LIPSD BECAME THICK. AND BURNING TOO. Now being in village no tests ls possible, Whether unhealing ulcers led to sqamous carcinoma. No medication now. Lot of mouth watering. And DRYNESS of the MOUTH. I have been taking tobacco since 5 years My immunity is very low, lost weight of ,8 kgs Much below my Body mass average.. Please suggest what should be done. No conveyance is available due to carona.