Here's why - how I hate these titles.
Regarding drug supply shortage. There needs to be some redundancy but also some partial autarky. The concentration of manufacturing in India and China is concerning. Yes, this has a cost but it's probably not as much as most people think.
I guess ozone has a physiological effect on the mucous membranes maybe also on the pathogens. Well at higher concentration it is definitely caustic and not to recommend.