When a breastfeeding baby has a cold, the mom’s medication is not able to assist in the treatment of the baby. Because after the mother takes the medicine, the drug is distributed to the breast milk through the blood of the whole body, just a part of it. And after metabolism, through breastfeeding into the baby’s body, the role of the drug has been minimal, can not achieve the therapeutic effect. Generally babies with colds should be treated accordingly in order to let the cold symptoms get more effective control. If the cold symptoms are relatively mild, try to let the baby drink more water, the mother can eat more green vegetables, fruits and so on. Improve the state of cold through diet, may not need drugs will gradually relieve themselves. If diet is ineffective, it is recommended to use cold and flu medication under doctor’s guidance, such as pediatric cold and flu granules. As the liver and kidney functions of babies are not very well developed, remember not to use drugs blindly to avoid damage to the liver and kidney functions. During the treatment period, breastfeeding babies who have already added complementary foods should be fed a light, easy-to-digest liquid diet, such as rice soup. It is recommended to eat small meals and be careful not to force the baby to eat to avoid overburdening the gastrointestinal tract. In addition, attention should be paid to maintaining indoor air circulation, so as not to lead to secondary infections.