Tongue ulcers arise from a variety of conditions, including viral infection, injury to the tongue. Treating the underlying cause of tongue ulcers may help to resolve the ulcers.

Ulcers in the oral cavity can occur due to many reasons.  Most importantly being stress,  hormonal changes in females,  due to deficiency of certain vitamins, intake of certain medicines ( like antibiotics). Continue applying the gel which will provide you symptomatic relief. It will take about 7-10 days to heal. Continue taking the vitamin b tablets. Regular exercises, healthy diet with lots of water intake and most importantly reduce stress.