Mouth ulcers, for a short time, are usually caused by minor irritation, stress, or a vitamin deficiency. Pain relief tablets or vitamin B complex supplements may sometimes be advised to support healing and reduce discomfort. Using a topical gel for mouth ulcers can also help soothe the area. Consult a doctor to recommend suitable medicine if the pain is severe.

Mouth ulcers can make eating spicy or acidic foods very painful and may occur due to irritation, stress, or a vitamin deficiency. Try rinsing your mouth with warm salt water and eat soft, non-spicy foods to reduce discomfort. Drinking enough water and maintaining good oral hygiene may help the ulcers heal faster. Consult a doctor if the ulcers are severe or do not improve within a week.