My reading on ivermectin is that the concentrations required to be effective outside of in vitro would be extremely high. For what it's worth, here are a few articles. Science is an evolving understanding of complex systems. Time and testing will tell.
"Laboratory studies using monkey cells in a test tube (as opposed to clinical studies in human patients) have shown ivermectin can shut down the replication of SARS-CoV-2, the coronavirus that causes COVID-19, within 24-48 hours of exposure to the drug.
Ivermectin is thought to inhibit the virus by preventin... (read more)
Without relying on mass media, i've seen far too many simulations and demonstrations (various camera and imaging types) and far too many detailed articles specifying particle size, mechanisms of viral distribution, viral load and the like to convince me that there is sufficient efficacy to warrant their use.
Yes, this includes discussions with people I know that work or who have worked in front-line medical positions. Yes, how the wearer uses / fits a mask, touches / adjusts it, disposes / reuses, which type of masks and how much other protocols are followe... (read more)