Children sleeping with cough and phlegm at night, consider that it may be related to upper respiratory tract infection, pneumonia, etc. It can be improved by general treatment, causative treatment and symptomatic treatment. 1. General treatment: if you have a cough with phlegm at night, you can drink more water and pat your back to promote the discharge of phlegm. 2. Allopathic treatment: upper respiratory tract infections, pneumonia, etc. can cause coughing and sputum, usually related to bacterial or viral infections, etc. Bacterial infections can be treated with amoxicillin and other medications, while viral infections can be treated with oral antiviral solution if necessary. 3. Symptomatic treatment: cough, cough phlegm, usually can follow the doctor’s instructions with cough expectorant drugs, commonly used drugs are pediatric phlegm particles and so on. Children sleeping at night coughing phlegm may also have other causes, it is recommended to go to the hospital as soon as possible for examination, to clarify the specific causes of treatment.