If the fever is caused by cold, you can breastfeed, but if the fever is caused by acute mastitis, it is not recommended to breastfeed, otherwise it may cause other adverse reactions to the child. If you have a fever caused by a cold, you need to drink plenty of water, pay attention to rest, take vitamin C supplements, prevent cross-infections, and be alert to dehydration caused by high fever. If the fever is caused by wind-cold cold, you can use the Jing Fang Pu Wei Toxin San plus reduction, which is pungent, warm and detoxifying; if the fever is caused by wind-heat cold, you can use the Yin Qiao San plus reduction, which is pungent, cool and detoxifying. You can also take Chinese medicines orally, such as Pu Di Lan Anti-inflammatory Oral Liquid, Blue Scutellaria Oral Liquid, Qing Kai Ling Granules, Ban Lan Gen Granules, Lian Hua Qing Di Yuan Granules and other medicines for clearing heat and removing toxins. If the fever is caused by acute mastitis, antibiotics are usually given to treat the symptoms, such as penicillin and cephalosporin.