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United Arab Emirates
A 23-year-old female asked:

Tried everything canker sore does not disappear. i have them on my lips,tongue, gums, everywhere im unable to eat or drink please help i am suffering?

1 doctor answer1 doctor weighed in
Dr. John Chiu
Allergy and Immunology 58 years experience
How long?: Canker sores usually resolve in less than a week. If you have persistent sores, you need to get an evaluation by your doctor to find out what the cause is.

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Last updated Dec 9, 2016

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