Pneumonia should be prevented after the disease has recovered, and it can be prevented through diet, work and rest, and the living environment. 1. Diet: After the pneumonia patient’s condition is relieved, the diet should still choose light and easy to digest food, avoid spicy and stimulating food. Diet can choose lean meat, eggs, milk, fresh fruits and vegetables, etc., cooking should be less oil and stimulating seasonings. 2. Work and rest: a good routine helps to improve the body’s immune system, to avoid bacteria, viruses, it is recommended to go to bed early and get up early, do not stay up late and tired, try to go to sleep before 11:00 p.m. every night, avoid coffee, strong tea and other stimulating beverages before going to bed to ensure that adequate sleep. 3. Living environment: the environment should be as clean and tidy as possible, to ensure air circulation, maintain the appropriate temperature and humidity, avoid cold and cold.