Hello, The healing of ulcers may vary from 7 to 14 days . It is nothing but break or discontinuity in the oral epithelium. Causes may be any sharp food or tooth , iron deficiency , vitamin deficiency, gastro oesophageal distress syndrome etc. Wait for a week apply Dolo gel on the ulcer 4 times a day avoid hot and spicy foods. If not healing consult a dentist.

Ulcers may take upto 2 weeks to heal. Apply hexigel or dologel. Avoid hot and spicy food and add a bcomplex tablet to your diet