Sen. Ron Johnson (R-Wis.) on Wednesday suggested that standard mouthwash could treat COVID-19, and criticized federal agencies for telling people to "do nothing." "Standard gargle, mouthwash, has been proven to kill the coronavirus," Johnson said, according to The Washington Post. "If you get it, you may reduce viral replication. Why not try all these things?" "It just boggles my mind that the NIH continues to tell people to do nothing," he added of the National Institutes of Health, in a recording posted online by Heartland Signal. The mouthwash strategy has been refuted by both health experts and mouthwash brands themselves....