A mouth ulcer or canker sore is a painful open sore inside the mouth caused by a break in the mucous membrane. The condition is also called aphthous stomatitis.


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Canker Sore Symptoms

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Signs and symptoms
... Signs and symptoms of canker sores may include: Painful sore or sores inside your mouth — on your tongue, on your soft palate, inside your cheeks or lips, and at the base of your gums Tingling o...
Source: MayoClinic

... The cause of most canker sores remains a mystery. Researchers generally believe that stress or tissue injury may cause the eruption of canker sores. A minor injury, such as biting the inside of your m...
Source: MayoClinic

Canker Sore Prevention

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... Because canker sores can recur, you may be able to reduce their frequency by addressing factors that seem to trigger canker sores: Watch what you eat. Avoid foods that seem to irritate your mouth. The...
Source: MayoClinic

Canker Sore Treatment

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... Often treatment isn''t necessary and your canker sore will heal on its own. Your doctor may suggest prescription medication if your sores are large, painful or persistent. To relieve the pain and irri...
Source: MayoClinic

... The following practices may provide temporary relief of canker sores: Avoid abrasive, acidic or spicy foods, which may increase the pain. Apply ice to your canker sores or allow ice chips to slowly di...
Source: MayoClinic

Canker Sore Other

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... Small and out-of-sight, but painful, persistent and annoying. That''s what canker sores, also called aphthous ulcers (aphthae), are like for people who experience them. These shallow ulcers in your mo...
Source: MayoClinic