Listerine, the most popular mouthwash brand in the US, says on its website that its product is “not intended to prevent or treat Covid-19 and should be used only as directed on the product label.”
And while the French study he’s referring to
show that a mouthwash regimen could reduce salivary viral load significantly, it had to be a specific antiviral solution known as CDCM used three times a day for seven days.
In other words, not just your ‘standard gargle’ at night. Even then, the measure only tackles salivary viral load, while most infections occur through the nose.
Johnson has a controversial track record on Covid-19.
He’s pushed for the use of experimental and potentially harmful medicines like ivermectin, and he’s questioned the efficacy and rationale behind coronavirus vaccines, which are safe and effective in preventing serious illness from the virus.
People on Twitter had a lot to say about Johnson’s mouthwash claims. Check out the responses below: