Respiratory tract infection is the most common disease in children, especially in winter and spring, the onset of which directly affects the child’s health and even complicates bronchitis, pneumonia, myocarditis, encephalitis, etc., thus endangering life. The key to prevention is: 1. Avoid contact with patients, similar to patients with fever, cough, runny nose or pneumonia. 2. 5. Healthy lifestyle, balanced nutrition, adequate sleep, timely increase and decrease of clothes. 6. Appropriate activities and exercise, avoid fatigue, tension, and bad habits, etc. If necessary, under the guidance of a doctor, the combination of Chinese and Western medicine conditioning is effective.