What is the direct answer?
Protect a mouth sore from irritation, use suitable pain relief only as directed, and seek examination if it persists or recurs.
What does this question mean?
A mouth sore may be a traumatic ulcer, aphthous ulcer, viral lesion, fungal infection, or dental infection, and each cause has different treatment.
What can you do next?
Choose soft foods, rinse gently, avoid tobacco and stinging foods, and check for a sharp tooth, denture edge, or biting habit.
When should you seek dental care?
Arrange care for a sore lasting more than two weeks, repeated sores, bleeding, a hard lump, numbness, fever, swelling, or swallowing difficulty.
What should you ask the dentist?
Ask what type of lesion is present, whether a local irritant is responsible, and which treatment fits your health history.
Frequently asked questions
What is the main thing to remember?
Protect a mouth sore from irritation, use suitable pain relief only as directed, and seek examination if it persists or recurs.
When should I stop home care?
Arrange care for a sore lasting more than two weeks, repeated sores, bleeding, a hard lump, numbness, fever, swelling, or swallowing difficulty.

