The fever one was the one I was kind of questioning. Although I agree with letting a low fever work itself out but 3 days...I read a rebuttal from a doctor about that Facebook post, so be careful. Of course, nothing wrong with drinking Gatorade or doing deep-breath exercises, but it said that there's no reason COVID-19 should cause a high fever for more than a day, so if you have a fever longer than that you should go to emergency because you might have sepsis. Other than that it seems pretty harmless.