I am making this a post, but will later integrate it into another post.
My plan is that on returning home after shopping, etc, I will nebulise hydrogen peroxide. If very concerned about possible infection, I will add 1 drop of Lugol’s Iodine. Some months ago I bought an OMRON nebuliser NE-C801 which is yet to be used – I like to be prepared for the worst. Lugol’s is hard to come by – I will give NZ sources; we take 1 drop/day.

I will make a decent job of this post soon, but for the moment:
Nebulized Hydrogen Peroxide — A Simple Remedy for COVID-19
https://www.spiritofchange.org/nebulized-peroxide-a-simple-remedy-for-covid-19/
Among our COVID-19 patients, we’ve had no deaths,” Brownstein says. “We’ve had a couple of hospitalizations, but much smaller than should be for the reported statistics. And we’re still using the same protocol we’ve been using for 25 plus years for flu and flu-like illnesses.
For decades now, Brownstein has prescribed vitamins A, C and D to his patients, and at the first signs of illness, he instructs them to jack up the dosages to 100,000 units of vitamin A and 50,000 units of vitamin D3 per day for four days, along with 1,000 milligrams of vitamin C per hour during waking hours until symptoms recede.
If you’re using 5% Lugol’s solution, simply add one drop to your nebulizer after filling it with the diluted peroxide solution. If you’re using 2% Lugol’s solution, which is available over the counter, add two drops. Of course, this should be done with a doctor’s consultation [they always say that to cover themselves – which is fair enough!].