Breastfeeding pregnant women who are overworked and malnourished can easily lead to a decrease in body resistance, which can lead to colds. Breastfeeding diet should take a complete nutrition, more comprehensive food variety, better quality protein, rice flour, fruits and vegetables, etc. You should also ensure enough sleep. Pay attention to the increase in clothing, breastfeeding should not be open chest and back. On the one hand, it can promote the secretion of milk, on the other hand, it can also improve the resistance. Most colds are caused by viral infections, which can cure themselves within a week. Drinking plenty of water can help flush out toxins from the body and promote improvement of the cold. It is recommended to eat fresh fruits rich in vitamin C to improve immunity and resistance to diseases, such as oranges and kiwis. If the body temperature exceeds 38.5 degrees Celsius, physical cooling and oral antipyretics can be administered. Check blood count, CRP and PCT to determine whether it is a viral or bacterial infection. If it is a bacterial infection, oral antibiotics can be taken appropriately; if it is a viral infection, oral administration of Shuanghuanglian Oral Liquid and Banlangen Granules is recommended. Extra care should be taken when breastfeeding, and the room should be ventilated to avoid infection to the baby. Once the disease is serious or infected to the baby, you should immediately go to a regular hospital and see a specialist. Do not delay the disease. (The specific drugs mentioned in the article should be consulted by a specialist)