Herbal medicine is the traditional medicine of all cultures and remains the most widely used system of medicine in the world today. Herbal medicine is being increasingly validated as modern science seeks to understand the chemistry of medicinal herbs and to confirm their safety and efficacy in clinical trials. Almost any condition that patients might see their doctor for can be treated with herbal medicine. In particular, it is extremely effective for treating disorders of the nervous system, digestive system, immune system and also hormonal complaints. A qualified medical herbalist knows when a condition is best seen by another health professional and will refer you when appropriate.