A member asked:

Will viscous lidocaine work on a canker sore?

9 doctors weighed in across 3 answers

Yes: Viscous Lidocaine is a topical and will help on any mucosal tissue.

Answered 5/12/2020

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Yes and No: It will help alleviate some of the discomfort of the ulcer, but it will not have any effect in shortening the healing process or prevention of future ulcers.

Answered 10/24/2017

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Maybe : A topical treatment like viscous lidocaine or any OTC product can provide temporary relief. Avoid spicy, and acidic foods. If if doesn't heal in 2weeks, or you get them often see a dentist or oral surgeon

Answered 11/27/2017

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