Cough in children needs to be treated according to the cause in order to have a good effect, the common causes are respiratory diseases, cardiovascular diseases, pleural diseases and so on. 1. Respiratory diseases: respiratory infections such as colds, bronchitis, pneumonia, rhinitis, tuberculosis, etc., lung tumors and other causes. Among them, infectious factors are the most common. Cefixime, ribavirin, azithromycin, isoniazid, etc. are used according to the pathogens bacteria, viruses, mycoplasma, mycobacterium tuberculosis, etc., respectively. Recurrent episodic cough, lasting >4 weeks, mostly related to exposure to allergens, physical, exercise, etc., need to be used in conjunction with the use of leukotriene receptor antagonists, such as montelukast sodium chewable tablets. 2. Cardiovascular disease: pulmonary stasis caused by mitral stenosis and left heart failure, etc., resulting in cough, should actively treat the primary disease. 3. Pleural diseases: pleurisy, pleural tumor, etc. cause cough, which need sensitive antibacterial drugs and surgical radiotherapy and chemotherapy treatment. The above medicines should be selected and applied under the guidance of professional pediatricians and after clarifying the cause of the disease, avoiding self-medication.