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How can I prevent canker sores?

ANSWER

Canker sores cannot be prevented. Many techniques have been proposed, but there is little evidence they work.

SOURCES: 

The Mayo Clinic. 

National Institutes of Health. 

Goldman's Cecil Medicine, 24th ed. 

Chattopadhyay A. Otolaryngol Clin North Am., Feb. 2011.

Reviewed by Sabrina Felson on May 10, 2019

SOURCES: 

The Mayo Clinic. 

National Institutes of Health. 

Goldman's Cecil Medicine, 24th ed. 

Chattopadhyay A. Otolaryngol Clin North Am., Feb. 2011.

Reviewed by Sabrina Felson on May 10, 2019

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What liquids should you avoid to keep your teeth white?

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