9Zinc Lozenges
If you have a weak or compromised immune system, a mouth ulcer might last longer. Zinc lozenges can help boost the immune system and get rid of harmful bacteria. When purchasing, make sure to read the label to check the amount of lozenge in each package. The daily recommended amounts of zinc for women and men are 8 and 11 mg, respectively. For most varieties, four lozenges a day are enough. If you use it in the long run, make sure to take copper supplements as zinc would deplete copper stores in the body. [9]












