There is no clear contraindication to breastfeeding, but it should be noted that the drug should be taken under the guidance of a doctor during breastfeeding. So as not to cause the baby to appear uncomfortable symptoms, affecting the normal growth and development of the baby. Cold and heat soft capsule belongs to a kind of proprietary Chinese medicine, which is composed of thorns, peppermint, fengfeng, chaihu, perilla leaves, kudzu root and so on. It has the efficacy of dispersing wind and dispersing cold, relieving surface and clearing heat. It is used for wind-cold flu, headache and fever, cold (cold) body pain, nasal discharge, cough and dry throat. The adverse effects and contraindications of the drug are not clear. It is recommended that parents do not blindly use the drug, must take the drug to consult the doctor in detail, weigh the pros and cons of following the doctor’s instructions, to ensure that the baby’s health.