I've seen no studies backing up the use of zinc for anything related to COVID-19. A search of pubmed for the terms 'covid zinc' or 'coronavirus zinc' show no papers referencing treatments. Same goes for medrxiv.
There are a lot of cold "treatments" involving the use of zinc in the way you suggest. I have even seen studies which support its use as a prophylactic to the common cold (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3273967/) though that one makes no reference to a common side effect, particularly the way you recommend its use, which is loss of sense of smell.
Further, I haven't read anywhere about the mechanism of infection you propose for this disease. It is said to attack the lungs, liver and small intestine due to its furin cleavage site (https://www.biorxiv.org/content/10.1101/2020.02.10.942185v1).
Finally, I am nearly certain you are spreading bad information about how this treatment works. Chloroquine is provided after active symptoms present. The first few days of infection are asymptomatic for most patients, certainly the first 4-7 days, if not longer. There is no medical call for treatment until a patient presents symptoms, and your advice risks leading people to attempt to hoard this medication.
We agree that chloroquine is indeed cheap.
Citation requested, that cytokine storms are a common pathology associated with Covid-19.
Because (a) I haven't seen that in the literature, & (b) it's at odds with the published age-banded mortality rates.
Not common but very serious.
It’s like quicksand in 19th century pop culture.
[0]https://academic.oup.com/cid/advance-article/doi/10.1093/cid...
This just isn't true. It maybe true for a subset of patients in some circumstances. To quote your first link:
Accumulating evidence suggests that a subgroup of patients with severe COVID-19 might have a cytokine storm syndrome.
So quinine is indeed arguably the original “active” ingredient, sugar was second (to mask the flavor), and alcohol “let’s just pretend this isn’t happening” was third.
And do you mean 3-4 days from the appearance of symptoms or from the initial infection? From what I read, 3-4 days is not always long enough for someone to even know they have it.