Occasionally a folk medicine cure turns out to be effective and the establishment faces a few "I told you so" shouts. Overall, (for everyone's protection from dangerous side effects and scammers) we should stick with the proven clinical trial methodology. I'm a little suspicious of the article because in the likely time frame of the treatments, I don't think that 350 patients could have been tested and proven to have been suffering from COVID-19 -- given that the test was not readily available in that interval.