If a breastfeeding mother has a cold, cross-infection can occur with her baby, but this infection is spread through respiratory droplets, not through breast milk, so the mother can breastfeed normally without using special therapeutic drugs, as long as she pays attention to the need to wear a mask with good isolation effect when breastfeeding the baby and nursing the baby in close proximity. You can also buy surgical hand disinfection from pharmacies to disinfect your hands, which is more effective and convenient. In addition, the mother should try to ensure more rest, usually eat more thin porridge, hot noodles and other foods, which will help the body to return to normal as soon as possible and reduce the chance of cross-infection with the baby, if necessary, the mother needs to ask the doctor to diagnose and treat their original disease.