ULCERS ON LOWER LIPS, UPPER LIPS, TONGUE

I WAS DIOGNOSED BY DENTIST AS OSMFIII 10 MONTHS BACK, NOW LEATHERY TOUCH WITH WITH WHITE RED MIXED PATCHES.IN CHEEKS.. MOUTH OPENING SLIGHTLY LESS THAN 3 FINGERS . LOT OF MOUTH BURNING EVEN BOILED LUKEWARM FOOD ITEMS. LOT OF MOUTH WATERING. I CONSUMED LOT OF TOBACCO AND BETEL NUTS FOR 7 YEARS. MOST IMPORTANTLY, NOW TUMOURS ON THE LOWER LIPS ADDING MORE AND MORE ROUND BIG COVERING ALMOST 20% OF LIPS. UPPER LIPS ARE OPEN FLAT ULCERS. UNDER THE TONGUE, ULCER, PARTICULARLY SIDES OF TONGUE. ON THE FLOOR OF MOUTH SMALL RED BOILS ARE FOUND. I LOST ALMOST 10 KGs of weight.in 6 months. Feeling very much tired. Due to LOCKDOWN I couldn't visit any SPLST. Kindly advise me what can be done now. Whether I can use curcumin caps. Even I may be diognosed oral cavity cancer. Thank you