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A 31-year-old member asked:

What's usually recommended for getting rid of mouth ulcer/canker sore?

2 doctor answers2 doctors weighed in
Dr. Michael Wexler
Cosmetic Dentistry 23 years experience
Time: Canker (unkown cause) and cold sores (viral cause) usually will go away in 10 days to 2 weeks. There are ointments you can purchase at the drugstore to make them less painful. If truly a cold sore, you can get a rx for Acyclovir which for some will shorten the timeframe.
Dr. Pamela Pappas
Psychiatry 42 years experience
Licorice: Licorice has been used since ancient times to treat canker sores in the mouth. Also, small studies show it can be effective when used as a mouthwash -- 50-75% improvement in 1 day. http://tinyurl.com/kr9aeau sucking on dgl lozenges may work also. Other studies showed positive results with a dissolving licorice disk placed on the sore. http://tinyurl.com/mdvde3o.

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A 45-year-old member asked:

What should I do to get rid of a mouth ulcer/canker sore?

2 doctor answers5 doctors weighed in
Dr. Stephen Gordon
Dentistry 43 years experience
Orabase for pain: Colgate orabase with Benzocaine (so long as you are not allergic) works reasonably well for mild symptoms. It is worth trying. If not successful, see your dentist. Also-- people that get canker sores frequently benefit from toothpaste that does not contain sodium lauryl sulfate (such as fluoridex without sls.

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Last updated Mar 24, 2018

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