Breastfeeding milk can be returned by the following methods: First, you can use Chinese medicine to return milk, such as using fried malt decoction to drink and using mannitol to apply externally, which can play a very good role in returning milk and can prevent mastitis, mannitol can reduce swelling and disperse knots, reduce the swelling and pain when returning milk, and prevent mastitis with a very good effect. Second, you can use estrogen or vitamin B6 to return milk. Women secrete milk mainly because of the role of progesterone and lactogen, and oral estrogen can counteract the role of progesterone and lactogen, which can play a role in returning milk. Vitamin B6 can also play a role in reducing the secretion of pituitary lactogen, which can also play a role in returning milk. The side effects of vitamin B6 are relatively small, while those of estrogen are relatively large and should not be used if you have abnormal bleeding, endometrial or breast lesions, or serious cardiovascular disease.