Aromatherapy, the therapeutic use of essential oils, is one of the most popular techniques of natural medicine practiced today. It is widely available, pleasant, and easy to use. Everything in your kitchen and bathroom has an aroma that affects you in many ways. The smell of cinnamon can make your mouth water or bring back the memory of grandma's apple pie. Lavender bath salts calm your nervous system as you soak in the tub. Aromas are added to candles, soaps, lotions and massage oils, so oftentimes you are practicing aromatherapy even when you don't realize it.