Zi He Che is the placenta of women after childbirth. Chinese medicine talks about blood and flesh sentient products, which can nourish the kidney and benefit the essence, mainly treating deficiency diseases, but also treating the body very thin, coughing blood, such as tuberculosis, old slow branch such coughing blood. Bone steam and hot flashes, as well as spermatorrhea, diseases of human consumption, and diseases of weakness, are generally used 3.5-5 g. However, if patients with actual evil are not very important to use, and yin deficiency and fire should not be used alone. It is best not to take it after boiling because it is hot, and it is best to use it after roasting and drying because many of the active ingredients disappear after boiling. For the use of purple river car, the industry has different ways of speaking, purple river car from traditional Chinese medicine is useful, but it is best to take dry not boiled, modern medical research that purple river car contains a lot of protein, sugar, calcium, vitamins, immune factors, progesterone, steroid hormones, gonadotropins, adrenocorticotropic hormones, etc., can promote the development of the breast, uterus, vagina, testes, the thyroid gland also has a promotional effect It has better effect on tuberculosis, bronchial asthma, anemia, etc., and should be better to be taken by grinding and brewing.