It is not advisable to take Huanglian during breastfeeding because the berberine in Huanglian can be secreted through breast milk and absorbed by the baby after the baby eats the milk. Especially when absorbed by newborns, it can affect the production of glucose 6-phosphate dehydrogenase, which can destroy the red blood cells of newborns and induce or aggravate the symptoms of neonatal jaundice. Huanglian is cold in nature, and when taken by breastfeeding women, it can be absorbed by the baby through lactation, which may affect the appetite of the baby’s spleen and stomach, or cause diarrhea in severe cases. As the gastrointestinal function of breastfeeding babies is not too sound, it is not recommended to consume foods that are too cold during breastfeeding to avoid hurting the gastrointestinal function of the baby. If diarrhea occurs during breastfeeding, it is recommended to choose montelukast or clostridium typhimurium diphtheriae, which can treat diarrhea without affecting breastfeeding and will not affect the baby’s health.