An ulcer in my tip of the tounge for last one month . ent doctor said it was caused by friction with the edge of the teeth of the upper jaw .polished the edges of the teeth by dentist .there is no improvements after 15 days medication . it looks like a red spot surrounding by white pimple like points . can it be a sign of carsinoma ? If yes what should be the treatment ? If not what will be its remedy? Pl. Advice at your earliest .