It is better to supplement vitamin C, vitamin B and multivitamins for oral ulcer, because the occurrence of oral ulcer may be caused by vitamin deficiency. Therefore, eating more bananas, oranges and other fruits rich in vitamins at ordinary times can help heal ulcers and prevent their scope from expanding or aggravating. For oral ulcer, in addition to taking more vitamins, it is also necessary to maintain personal oral hygiene. Every time you finish eating, you should rinse your mouth with light salt water to reduce the continuous growth of bacteria, so as to avoid more serious oral ulcer. If the oral ulcer has not improved for a long time, it needs to be treated in hospital in time.
