After taking antipyretics, breastfeeding is usually not allowed until 12 hours to 3 days later, the length of time being related to the antipyretics taken. Many antipyretics have the potential to be secreted through breast milk and have some effect on the child, so breastfeeding should not be done until the antipyretic has been completely metabolized. In the case of Xiao Chaihu Granules, breastfeeding can be done after 12 hours. If you are taking non-steroidal antipyretic analgesics such as ibuprofen and acetaminophen, you need to stop breastfeeding and resume after at least 48 hours, and if you are taking aspirin, you need to wait at least 3 days before breastfeeding. When fever occurs during breastfeeding, the cause of fever needs to be checked before treatment. If the fever is caused by mastitis, antibiotics need to be taken at the same time for treatment, such as amoxicillin and cephalosporins, etc. If it is a low-grade fever, breastfeeding can be continued. If the temperature exceeds 38.5℃, you can take ibuprofen at the same time to reduce fever, and then resume breastfeeding after 48 hours. If the fever is caused by viral infection, antiviral drugs and antipyretics are needed and breastfeeding needs to be suspended. In case of fever during breastfeeding, relevant medications need to be taken under doctor’s supervision to avoid any effect on the baby.