More on that here:
Antiseptic mouthwash, the nitrate–nitrite–nitric oxide pathway, and hospital mortality: a hypothesis generating review
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567004/
Wow...”Because antiseptic mouthwashes eradicate the oral bacterial flora, this nitric oxide-generating pathway is abolished, which may result in nitric oxide-deficient conditions potentially leading to life-threatening complications such as ischemic heart events or sepsis.”
BUT, the FLCCC says “Antiseptic antimicrobial mouthwash: gargle twice daily (do not swallow). Choose mouthwashes containing chlorhexidine, povidone-iodine, cetylpyridinium chloride, or the combination of eucalyptus, menthol, and thymol.”
Choose your poison: ischemic heart events or COVID.
Tough choice!