Oregano is most popularly famous for its usage in the shape of oregano oil. it is one of Nature’s finest preservatives.” It was first used by the Greeks. Oregano, as we know it, really isn’t the exact same medicinally. It is one of the most diverse health aides available. It is one of the world’s greatest sources of the powerful phenol component thymol. It was one of the few food flavorings available to give variety to the daily fair.