Any drug has a main treatment range, there are indications, can not be indiscriminate oral, need to be under the guidance of the doctor, according to the body of the appropriate oral. The six flavors of dihuang pill mainly has the role of nourishing the liver and kidney, but the taste is relatively cold, if taken without permission will damage the yang qi, on the contrary, it will damage the kidney yang, kidney yang deficiency, and will affect the digestive function of the spleen and stomach, abdominal distension, diarrhea and so on, so six flavors of dihuang pill can’t be randomly taken orally. Only when the body has symptoms of yin deficiency, such as warmth in the palms of the hands and feet, hot flashes and night sweats, dry mouth and tongue, etc., can it be taken orally appropriately.