When a breastfeeding mother has a cold, if it is not serious it will not affect breastfeeding and she can feed her baby. However, if the cold is caused by a viral infection and has a chance of transmission, not only should you stop breastfeeding, but it is best to pay attention to isolation so that you can avoid transmitting it to your baby. Generally, within 6 months of the baby’s birth, the antibodies brought from the mother’s body can prevent some diseases from occurring. However, after 6 months, the antibodies will gradually disappear and some viral diseases can be contracted at this time, so you should pay attention to isolation to avoid infecting your baby. During this period, after the condition is determined, timely symptomatic treatment, during the treatment of cold with medication, try not to breastfeed the baby, preferably after 24 hours after stopping breastfeeding, so that the baby will not be affected.