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A member asked:

Can rubbing hydrogen peroxide on your canker sore/ cold core really make it go away?

A doctor has provided 1 answer
Dr. Theodore Davantzis answered

Specializes in Dentistry

No it does not: It will probably irritate the lesion even more. The lesion should heal in about 10 days, give or take.

Answered 2/12/2019

5.1k views

Thank

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