When breastfeeding a fever, medication should be used with caution, depending on the condition, and antipyretics such as acetaminophen can be used as prescribed by a doctor if necessary. After the use of drugs in nursing women, the drug with the blood circulation, into the breast milk. After breastfeeding, the drug may affect infants and young children, and is not recommended for non-essential situations. The causes of fever are complex, various infectious factors, immune factors, physiological factors, etc. may lead to fever in breastfeeding women, fever reduction can be preferred to physical cooling (warm water wipes, antipyretic patches). It is recommended to consult a doctor in time, improve the relevant tests, after clarifying the cause of the disease, under the guidance of the doctor, the use of acetaminophen and other antipyretic drugs. Acetaminophen may cause allergies, gastrointestinal reactions and other adverse reactions, and should be used under the guidance of a medical professional. During the use of medication, it is recommended to suspend breastfeeding and change to artificial feeding.