I was right on that one. It does have a downside in that the iodine is destructive to oral flora critical to nitric oxide production in the stomach. Colloidal silver has the same problem.
I was also using a hydrogen peroxide mouthwash once a week, maybe twice a week, about 1:2 hydrogen peroxide to water. That also has a downside of being harmful to the enamel on the teeth, so I did that sparingly, too.
Ironically, it's the hydrogen peroxide buildup in the body from COVID-19 that is what killed people once they went into oxidative stress from glutathione depletion.
-PJ