When your baby is 1.5 to 2 years old, you can consider weaning your child. When weaning, you should first stop breastfeeding, and then you can take oral medications to return milk, such as vitamin B6, malt, and topical application of mannitol, all of which can return milk. If the breast swelling and pain is obvious, you should not express milk and pay attention to protecting your breasts from the symptoms of mastitis, because at this time the breasts are easily inflamed. If you express milk, it will cause continuous secretion of milk and may prolong the time to return milk, usually about 1 week after stopping breastfeeding, there will be no obvious feeling.