Medicinal plants can contain a variety of phytochemicals as well as minerals, vitamins and trace elements. Some of the phytochemicals are pharmacologically active and can exert a therapeutic action on the body. Plants with different properties are combined in a prescription tailored to the individual after taking a complete history and thorough physical examination from the patient to identify the problem. Herbal treatment is accompanied with advice on diet, exercise and any lifestyle changes that could possibly help to alleviate the condition.