You can take cold capsules during breastfeeding under the guidance of a doctor, and after taking the medicine it is recommended to stop breastfeeding temporarily until the drug is completely metabolized and the milk is emptied on time. Because the quick-acting cold capsule or cold capsule is a compound preparation, its main ingredients are acetaminophen, caffeine, chlorpheniramine maleate, artificial sulfur, of which caffeine can be passed to the child through breast milk, which will have certain effects on the baby. Therefore, if you have a cold during breastfeeding, you should use medication under the guidance of a doctor and try to choose medication that does not affect lactation and the newborn. If the symptoms are obvious and require medication, medication should be used under the guidance of a doctor, and the half-life of the medication should be taken into consideration when using the medication, as well as the effect of the medication on the newborn.