The white pus on the nipple during breastfeeding is generally considered to be a localized infection, first of all, it is recommended that the child should not eat this side of the lotion, which may be related to the child’s sucking process will be localized nipple biting, the formation of the infection of the aureus bacteria. It is recommended to keep the nipple clean and dry, and also to squeeze out the milk inside the mammary gland in time, the child ate the other side of the milk, you can apply topical gentamycin ophthalmic ointment. If the pregnant woman has fever and other symptoms, it is recommended to go to the hospital for ultrasound to see, there may be acute mastitis, if there is acute mastitis, you may need to use a needle to puncture the pus, or even cut the pus, to drain out the pus, and you may need to use antibiotics to treat.