Oregano Flowers (Origanum vulgare)

Potent germ-killer, Oregano oil comes from the plant Origanum vulgare and has a long history as a natural antibiotic and antiseptic used to fight infection. People in the Middle Ages used oil of oregano to help preserve foods. Oregano oil contains the compound carvacrol which has impressive antiviral, antibacterial, antifungal, and antiparasitic properties.