An A-Z of over 80 plants and their essential oils gives information on each plant's origins, scientific constituents, how its oil is extracted and its main therapeutic uses. A second A-Z section lists over 100 common ailments which aromatherapy can be effective in treating. These range from arthritis and eczema to influenza and toothache. The author explains how to carry out the treatments safely and provides recipes for lotions, massage oils and tisanes and advice on how aromatherapy can be used in your diet.