A fever of 38.5°C during breastfeeding is usually caused by a pathogenic infection and can be managed with physical cooling, medication (e.g. acetaminophen), etc. Breastfeeding fever 38.5 ℃ can be physically cooled down by undressing and using warm water and alcohol baths. In addition, medications can be used to bring down the fever quickly, such as ibuprofen and acetaminophen, to promote sweating and heat loss. At the same time, breastfeeding should be avoided to avoid transmitting pathogens to the baby through breast milk. Once found that breastfeeding mothers have a fever of 38.5 ℃, you need to consult a doctor in a timely manner, under the guidance of the doctor to improve the relevant examination, standardized treatment, to avoid delaying the condition, resulting in accidents. At the same time, drugs may have allergic reactions and other side effects, if you need to use drugs should be used under the guidance of a doctor, do not blindly use drugs.