If the fever is caused by a common cold, you can breastfeed your child. Fever caused by cold is mainly transmitted through the respiratory tract, not through breast milk. When breastfeeding your child, you need to wear a mask and wash your hands regularly to prevent transmission to your child. When you have a cold, you need to drink plenty of water, take rest and take vitamin C supplements to prevent cross-infection. You can open the window room to make air convection, which can reduce the rate of mutual infection. If the fever is caused by acute mastitis, breastfeeding is not recommended and may cause other adverse reactions in the child. In the case of acute mastitis, antibiotics can be given to treat the symptoms, commonly used antibiotics such as penicillin, which has less impact on the child. It is also possible to take oral Chinese medicine, such as Pu Di Lan anti-inflammatory oral liquid, Blue Scutellaria oral liquid, Qing Kai Ling granules, Pan Lan Gen granules, Lian Hua Qing Hui granules and other heat-clearing and detoxifying drugs.