You have to empty your breastmilk if you can’t finish it. Breast milk is constantly secreted during the breastfeeding period, and if too much milk is secreted, it will cause breast swelling and pain, or even mastitis. If you have too much breast milk for your baby to finish, you can’t finish your breasts, so you need to suck out your breasts. It is recommended that you use a breast pump to suck out the breast milk, and if you use your hands to squeeze out the milk, you should pay attention to the strength and technique, and if you don’t squeeze out the milk, you will be able to hold it in for a long time, and it will cause pain in the breasts and will easily lead to mastitis. You don’t have to throw away the milk, you can put it in the refrigerator and freeze it, you can keep it for about 3-6 months. Once you have breast pain and fever during breastfeeding, you need to go to the hospital in time for a clear diagnosis and standardized treatment.