Drug Composition: Astragalus, Codonopsis pilosula 30 grams each, Angelica sinensis 15 grams, Wang Bu Liuhang, gunner’s snail 10 grams each, Tongcao 6 grams. Usage: Decoction with water. One dose per day, two times, after delivery of little or no milk, known as “lack of milk”, also known as “milk can not be”. Zhang Jingyue in the “women’s rules” said: “women’s milk, is the Chong Jing Qi and blood, so the lower is the meridian, on the milk, if the postpartum milk is late milk less, said that the gas and blood is not enough, but still or no milk, it is the Chong Jing’s weakness is also undoubtedly.” Postpartum qi and blood deficiency is the cause of lack of breast milk. In this formula, astragalus is the key drug to replenish qi; angelica replenishes blood and activates blood; often ginseng replenishes qi, weak spleen and stomach, blood impotence and yellow of the key drugs, three drug combination, qi and blood double supplement. Wang Buliu, Gunjia, Tongcao, have the effect of promoting blood circulation and menstruation, and promoting lactation. The composition of the whole formula, there is a complementary gas and blood, blood and lactation function, so the milk to get down. I use this formula according to incomplete statistics, has reached more than 30 cases, were satisfied with the results.