The main treatment measures for patients with painful breast swelling during weaning are as follows: 1. external application of mannitol: it can be applied externally to both breasts and replaced when the mannitol is wet and hard. mannitol has the effect of reducing swelling, clearing heat, relieving pain and anti-inflammatory. It is also used to soften the hard knots in the breasts and relieve the pain caused by hard knots and mastitis, and to effectively absorb the milk back into the swollen breasts by using its osmotic pressure. 2. decoction of raw malt: raw malt is an elimination medicine, which has the effect of moving Qi and eliminating food, strengthening the spleen and appetite, and reducing milk and swelling. There are no obvious toxic side effects. Now pharmacological research shows that malt contains ergot compounds, ergocalciferol can inhibit the secretion of prolactin, so that the prolactin release response is inhibited, with the effect of inhibiting milk secretion.