1.Improve respiratory function (1) Keep the room environment comfortable: air circulation, temperature and humidity are appropriate; try to keep the child quiet to reduce oxygen consumption; (2) Use semi-recumbent position for those with respiratory distress, and change position frequently to reduce pulmonary stasis and prevent pulmonary atelectasis; (3) Administer oxygen; (4) Use antibiotic therapy as prescribed by the doctor to promote gas exchange. (1) Promptly remove the secretions from the child’s mouth and nose: change the position and pat the back to promote sputum discharge; give nebulized inhalation to dilute sputum; aspirate if necessary; (2) Give a liquid or semi-liquid diet that is easily digestible and nutritious, and eat small meals to avoid choking and coughing; be patient when feeding to prevent choking and asphyxia; (3) Give sputum expelling agents as prescribed by the doctor, and bronchial antispasmodics for severe wheezing. (3) Give bronchial antispasmodics to those with severe wheezing. Monitor the change of body temperature and be alert to the occurrence of febrile convulsions; give cooling measures to those with high fever; keep the mouth and skin clean. (1) If the child shows signs of heart failure such as restlessness, pallor, increased shortness of breath, heart acceleration greater than 160-180 times|minutes, and rapid liver enlargement in a short period of time, promptly report to the doctor, give oxygen inhalation and slow down the infusion rate, and give cardiac and diuretic drugs as prescribed by the doctor to enhance heart contraction and reduce the heart load; (2) If the child shows signs of restlessness or sleep, or (2) If the child appears irritable or sleepy, convulsions, coma, irregular breathing, etc., suggesting increased intracranial pressure, immediately report to the doctor and work together to resuscitate. (1) Explain to the parents about the disease and the main points of care, and instruct them to feed the child reasonably and strengthen physical exercise to improve the respiratory function of the child; (2) For children who are prone to respiratory infections, pay attention to keeping warm when going out in the cold season to avoid catching cold; (3) Regular health checkups and vaccination on time.