Aroma therapy is a holistic healing treatment defined as therapeutic use of essential oils from plants for the improvement of physical, emotional, and spiritual well-being. Aroma therapy is actually a form of herbal medicine. However, instead of using the entire herb, it employs only the "essential oil" from the plants. Essential oils are volatile liquid substances extracted from aromatic plant by steam distillation or mechanical expression.
When employed medicinally, essential oils are often evaporated into the air with the use of a humidifier. The famous Vicks Vapo Rub is a gel form of the essential oils of Peppermint, Eucalyptus, and Camphor. Aroma therapy has become popular in the treatment of Mild Anxiety, Respiratory Problems, Post Surgical Nausea, Menstrual Pain, and Tension Headaches.