Cheap Treatment for Covid-19 with MethyleneBlue that might be rejected by pharma

My `father is a pulmonologist(lungs specialist) in India and he has proven methods that have successfully shown great results against SARS-COV1, MERS, and other similar illnesses. He is pretty sure that the treatment will successfully work against COVID-19 as it has the exact similar symptoms. The same methods also work against SARS-COV2 !

He has written a blog of how to treat is with the really cheap drug/dye which is easily available in every drug store over the counter - https://medium.com/@dr.deepak.golwalkar/treatment-for-covid-19-using-methylene-blue-d23fc5a31a4d

My guess, that the reason that Methylene Blue(MB) is not a mainstream drug for COVID-19 cause it has several positive effects with not just lung diseases but many others; as well as MB(Methylene Blue) is easily and cheaply available everywhere. Which is a huge loss for the pharma industry!

Here are 5 of the reports of Methylene Blue showing really good results - 3 are formal research documents, 2 are informal

India(same as above): https://medium.com/@dr.deepak.golwalkar/treatment-for-covid-19-using-methylene-blue-d23fc5a31a4d Chinese: https://www.researchsquare.com/article/rs-17718/v1 Paris: https://riviste.fupress.net/index.php/subs/article/view/888 Germany: https://pubmed.ncbi.nlm.nih.gov/29732571/ Brazil: https://www.youtube.com/watch?v=4jK6RiFi2hA