Aromatherapy is an ancient healing art currently growing in popularity. Aromatherapy uses essential oils extracted from herbs and flowers, which have been revived and verified by scientific research. Applied to the skin or inhaled, each oil or combination of oils addresses a specific emotional disorder, organ dysfunction, skin problem, etc. Aromatherapy also includes principles of massage, diet, and an understanding of the psychological factors of illness.
The Art of Aromatherapy - Robert Tisserand
The Aromatherapy Book - Jeanne Rose