Health guidance for children discharged from hospital is as follows: 1, to keep the indoor air fresh and keep the air circulating, i.e. open the windows for ventilation; 2, to strengthen nutrition: after being discharged from hospital, children’s nutrition is relatively poor due to the physical exertion of diseases, so it is necessary to strengthen nutrition; pay attention to the supply of energy-producing nutrients, such as sugar, carbohydrates, fat, protein and vitamins and minerals; 3, to participate in appropriate outdoor activities, suitable for cold and warmth, and pay attention to keeping warm; children should keep warm when they have a cold, but should not wear too much to prevent them from catching a cold after sweating; 4, to pay attention to hygiene habits: such as washing hands regularly, preventing diseases from entering the mouth, and paying attention to wearing a mask; 5, to prevent vaccination on time, which can achieve twice the result with half the effort.