If the mother has a cold, it depends on whether it is a cold or a viral cold, if it is a cold it will not be contagious, a cold will be contagious, but the initial stage of the cold can not be distinguished from what the cold is, it is best to wear a mask when breastfeeding. It is best to wear a mask when breastfeeding and let your family members help take care of your baby at other times to reduce contact with your baby as much as possible. As long as the mother’s body temperature does not exceed 38.5℃, she can breastfeed her baby as usual. If the body temperature exceeds 38.5℃, the baby will easily get diarrhea after consuming breast milk due to its hot nature, so she should stop breastfeeding in time. If the mother has a cold, she should treat it promptly, drink more water, and take some medicine, but she should not breastfeed until six hours after taking the medicine. If the mother is suffering from a serious cold and has to be treated with antibacterial agents which are in the way of the baby’s healthy development, do not breastfeed for the time being to avoid the drug being delivered to the baby through the breast milk. In addition to providing breast milk with high nutritional value, breastfeeding mothers should pay attention to their own physical changes, not only to prevent colds, but also to take appropriate treatment measures in a timely manner if they are found to be unwell, in order to prevent bad effects on the baby.