Dry cough in children may be due to common cold, cough variant asthma, bacterial pneumonia and other causes, which may require symptomatic treatment, anti-infective treatment or other treatments. 1. Common cold: Dry cough caused by common cold can be treated with medicines such as Compound Methylphenidate Oral Liquid. 2. Cough variant asthma: Dry cough caused by this disease needs to be treated with montelukast sodium or inhaled budesonide aerosol. 3. Bacterial pneumonia: Dry cough caused by bacterial pneumonia needs to be treated with sensitive antibiotics such as azithromycin and other medications, while cough suppression can be given if the sputum is not too much and the cough is severe. 4. A variety of other causes, including tuberculosis, gastroesophageal reflux cough, cardiac cough, airway foreign body, etc., the above diseases need targeted treatment. Therefore, children with dry cough need to actively identify the cause of the disease, targeted treatment.