How to reduce pain from mouth ulcer

A mouth ulcer usually improves on its own; protect it from irritation with gentle mouth care, cool drinks, and appropriate pain relief.

A mouth ulcer is a shallow break in the lining of the cheek, lip, tongue, or gum, often surrounded by a red rim. The exposed tissue hurts when touched by food, teeth, or acidic drinks.

Rinse gently with salt water, choose soft cool foods, and avoid spicy, acidic, or rough foods while the area heals. A pharmacist or dentist can recommend a topical gel or mouth rinse after checking your medicines and health conditions.

Arrange a dental examination if the ulcer lasts beyond two weeks, keeps returning, is unusually large, or makes eating and drinking difficult. Seek urgent help for facial swelling, trouble swallowing, or breathing.

Ask what type of ulcer is most likely and whether a sharp tooth, denture edge, medicine, or medical condition is irritating it. Ask which topical treatment fits your health history and what duration should trigger review.