Malan head generally refers to Malan, whose effects are mainly cooling the blood and clearing heat, inducing dampness and removing toxins. It is clinically used for the treatment of many kinds of bleeding, malaria and other diseases. Malan is pungent in flavor, cool in nature, and belongs to the lung, liver, stomach, and large intestine meridians, and its efficacy is to cool the blood and clear away heat, diuretic and detoxicating. It is commonly used in the treatment of bleeding, malaria, jaundice, edema, cough, carbuncle hemorrhoids, carbuncle and swollen toxin (acute infections, visible skin red like paint), pediatric chancre (a chronic disease of children, manifested as emaciation, dietary anomalies, abdominal distension, thinning and yellowing of the hair, etc.). Note that pregnant women should be careful to take, its adverse effects are not clear. When you need to improve the treatment of physical symptoms through the drug, you need to go to the hospital under the guidance of a professional doctor, combined with the personal situation to choose, to avoid blindly use their own medicine, delayed or aggravate the symptoms, produce adverse effects.