Breastfeeding is not recommended 6 hours after the pus has been squeezed out of a cracked nipple. The presence of pus in a cracked nipple is a sign of a more serious condition, and breastfeeding should be suspended at this time to prevent the baby from sucking on the pus when sucking on the milk during breastfeeding. Breastfeeding is not recommended even 6 hours after the pus is squeezed out, because at this time the ruptured nipple has not fully recovered, and if breastfeeding blindly, the healing of the ruptured nipple may be affected. Pus in the cracked nipple needs to be actively treated by the doctor, the pus needs to be drained out first, and then the local area should be sterilized with iodophor, and antibiotic ointment should be applied externally, such as erythromycin ointment, and oral antibiotic medication should be taken if necessary, such as Cefixime, Cefuroxime, and so on. It is recommended that patients seek timely medical treatment, under the guidance of the doctor to take targeted treatment.