I do not know whether this has already been mentioned on Lesswrong, but 4-6 weeks ago you could read in German news websites that commercially available mouth wash has been tested to kill coronavirus in the lab and the (positive) results have been published in Journal of Infectious Diseases.
You can click through this article to see the ranked names of the mouth wash brands and their “reduction factor” though I found the sample sizes seemed quite small. You can also find a list in this overview article. In an article I saw today on this topic, the author warned against using the stuff permanently because it also kills the desirable part of your oral flora. But it was suggested that it may help once you are infected, and may possibly help prophylactically (of course only in the sense of helping when you are possibly infected).
I do not know whether this has already been mentioned on Lesswrong, but 4-6 weeks ago you could read in German news websites that commercially available mouth wash has been tested to kill coronavirus in the lab and the (positive) results have been published in Journal of Infectious Diseases.
You can click through this article to see the ranked names of the mouth wash brands and their “reduction factor” though I found the sample sizes seemed quite small. You can also find a list in this overview article. In an article I saw today on this topic, the author warned against using the stuff permanently because it also kills the desirable part of your oral flora. But it was suggested that it may help once you are infected, and may possibly help prophylactically (of course only in the sense of helping when you are possibly infected).