This delicious herb has been commonly used for centuries to treat pain, colds, asthma, and fatigue. Oregano also has anti-inflammatory and antioxidant properties. In the Philippines oregano is scarcely used in cooking; however it is commonly used to treat children’s coughs. Applied topically, oregano is an effective antiseptic because of its high thymol content. When brewed as a mild tea, oregano will even promote good sleep.