Aromatherapy or essential oil therapy is a therapeutic procedure that uses healing effects of oils derived from plants to induce sedating and stimulating effects on mind and body. It can work either through a sense of smell or via topical application. It can also be performed by soaking in an oil-induced bath. Application of a blend of essential oils with a carrier oil provide benefits like relief from a headache and fatigue, pain alleviation, sound sleep, and improved immunity and skin health.