Babies cough all the time, which makes parents very worried. First of all, it is important to find out the cause of your baby’s cough. Only by finding the right cause can you treat it properly. 1. Cough caused by infection, such as upper respiratory tract infection, bronchitis, pneumonia, etc., may cause cough. In this case, anti-infective treatment is usually needed according to the cause, considering bacterial infection that requires antibiotic treatment, and mycoplasma infection that can be treated with macrolide antibiotics. If the cough is obvious, symptomatic cough suppressant medication can be given, and care needs to be taken not to give the baby central cough suppressants as much as possible. 2. Post-infection cough: Some children’s body temperature has dropped to normal after a respiratory infection but the cough lasts for a long time and is difficult to get better. In this case, post-infection cough is considered and the baby can be given some cough medicine or montelukast treatment under the guidance of a doctor. 3. Other causes of cough: such as allergic cough, cough variant asthma, upper airway syndrome, etc. The clinical manifestations of each disease are different and need to be analyzed specifically according to the baby’s condition and given targeted treatment. Parents should identify the cause of their baby’s cough, and only by knowing the cause can they treat it symptomatically, rather than simply giving cough medicine.