In this episode, I provided a brief history of folkloric medicine and Islamic folkloric medicine. In Iran, this field is still active and many people follow it. They believe we should trust nature and what the Imams and the prophet have suggested for our health.  When it got to Covid19, modern medicine and folk medicine confront more than ever. Here I discuss these questions: how far should we trust this field? how far it is allowed to interfere with our lives? Isn't it time to trust science? What is the border between science and pseudoscience?