#herbal medicine Art of healing, based on the use of plants, or substances extracted from them. This is probably the oldest form of treatment known to man & was practised in prehistoric times. Herbal treatments formed the basis of medical care in most ancient cultures. Many drugs used in modern medicine are derived from plants. Modern interest in herbalism relates to a growing awareness that many man-made drugs have unpleasant & sometimes serious side-effects. However, some plant mixtures are potentially very dangerous, therefore anyone seeking treatment should obtain the endorsement of their doctor. Herbal medicines should not be self-administered without the advice of a qualified person.