Yup, I've heard that once you are full blown cytokine storm it doesn't help very much.
In a call yesterday a Vendor told me about his Neighbor (his neighbors a Dr.) that lives in a house with his elderly parents (mid 70s),wife and two kids, the dr. got diagnosed with Covid19 , but he already had scrips for everyone in his house for 5 days of Hydrochloriquine, and a zpack. As soon as his mom and dad showed symptoms he started them on it. Everybody in the house got sick, but it was super mild and only lasted about 3 days for them. He is convinced it was the Hydro/Zpack combo. Unfortunately I think most people aren't in a position to already have the scrips ready. He had them at the beginning of March because he had heard about good results from Europe and Asia.