I have heard many unconventional ways to treat Covid. Of course, I trust only the treatment option recognized by the World Health Organization. I studied at the diagnostic medical sonography university. A lot of conferences were often held about the disease that changed the life of the whole humanity. I know that specialists in the health care system from that university have never considered metformin as a cure for Covid. I am very happy that I graduated from medical school and that I can help people stay healthy. You have to love medicine to become a professional in this field.