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A member asked:

Original listerine is 26.9% alcohol. does gargling it prevent viruses like flu or covid or at least make it harder for viruses to start an infection?

A doctor has provided 1 answer
Dr. Theodore Davantzis answered

Specializes in Dentistry

Can't Hurt: But Listerine is for oral bacteria, and may help a bit if you have Strep Throat. The Flu and COVID are airborne, viral upper respiratory infections.

Answered 3/24/2020

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