Fructus schisandrae is contraindicated in people with external surface evil (evil on the surface of the muscle), internal solid heat, or at the beginning of a cough or gua sha rash. Schisandra chinensis is a traditional Chinese medicine, is the mature fruit of Schisandra chinensis or Huazhong Schisandra chinensis, family Schisandraceae, with sour taste, sweetness and warm nature; it belongs to the lung, heart and kidney meridians. The drug has the effects of astringency and solid astringency (astringent consolidation), benefiting qi and generating fluid (promoting fluid production by tonifying qi), tonifying the kidney and nourishing the heart, and is mainly used in the treatment of prolonged cough and asthenia, spontaneous sweating (involuntary sweating during the daytime, aggravated by a little movement of the sweating), night sweating (abnormal sweating after going to sleep, and stopping sweating after waking up), spermatorrhea, spermatorrhea, prolonged diarrhea, fluid-injury and thirst, palpitation (self-consciousness of the heartbeat accelerating), insomnia and other symptoms. The drug is strong in astringency, so it is contraindicated in people with external surface evils, internal solid heat, or coughs at the beginning of coughing or cholera, so as not to close the door and keep the enemy (the pores of the skin are closed so that the evil stays in the body and can not come out). The use of schizandra is recommended under the guidance of a professional physician, do not self-medicate.