The fact that you can drink Banlangen granules during breastfeeding, which is a proprietary Chinese medicine, has no side effects and will not affect breastfeeding. If you have a cold during breastfeeding, simply taking Banlangen is not very useful, you need to cooperate with anti-inflammatory drugs, you can take penicillin anti-inflammatory drugs, such as amoxicillin, etc. In order to avoid affecting the baby, it is best not to use drugs indiscriminately during breastfeeding. If the cold is serious, you need to go to the hospital to check the blood routine, to see whether it is a bacterial infection or viral infection, under the guidance of the doctor to take reasonable drugs, so that it is safer. At the same time, it is recommended to pay attention to keep warm and drink more water to speed up the excretion of drugs, which also helps to recover from the cold. During the breastfeeding period, it is recommended to strengthen diet and nutrition, and to exercise properly to enhance resistance and prevent colds.