Herbal Medicine is the use of plant remedies in the treatment of ailments. It is the oldest form of medicine known. Our ancestors, by trial and error, found the most effective local plants to heal their illnesses. Now, with the advancement of science enabling us to identify the chemical constituents within these plants, we can better understand their healing powers. Herbalism, in this country, is now classed as an "alternative" or "complementary" discipline, but it is still the most widely practised form of medicine worldwide, with over 80% of the world's population relying on herbs for health.