Hello..mouth ulcers may be due to various factors like stress induced,vitamin deficiency,bacterial or viral infection.visit dentist and ENT specialist to eliminate the cause of ulcer permanently.

start taking multivitamin tab A to Z daily once after meal,continue it for a month, u will get the results

Hello there. I can understand that you are tired of this problem. Mouth ulcers of cancer origin needs some risk factors like do you have a habit of chewing betelnuts, tobacco or a habit of smoking? Usually mouth ulcers can be due to some micronutrient deficiency also. Get yourself checked out by a ENT specialist for further evaluation and management. Best regards. Dr. Anil kumar jain.