It usually takes about 1 week for a woman to hold back her milk hard while breastfeeding, but this method is not advocated. Holding back milk is likely to cause breast disease, resulting in fever and other discomfort, and in severe cases, causing breast abscesses that require surgical incision and drainage. At present, the common method of returning milk is to stop breastfeeding, not to empty the breast, eat less soup, take 500 grams of Chinese herbal medicine mannitol and crush it, put it in two cloth bags, cover both breasts and take it off when the mannitol in the bags becomes hard, you can crack it and reuse it. In addition, you can also take vitamin B6 and raw malt decoction as tea to help return milk. Some mothers may feel breast pain during breastfeeding. You can wear a suitable bra and take oral analgesic medication, and the pain will be relieved naturally after 2-3 days. During the breastfeeding period, you should pay attention to reduce the stimulation of breasts and nipples, do not let the baby suck the milk again, and try to avoid using estrogen or bromocriptine to return milk.