Asthma in children is a relatively common lung disease in infants and children. The symptoms of asthma in children are manifested in various ways, such as chest tightness, dyspnea, coughing and coughing, chest pain, vomiting, pallor, cold sweats and other symptoms. The symptoms of asthma in children will first appear as chest tightness, chest urgency or even a choking sensation, followed by dyspnea within 10-15 minutes, accompanied by the appearance of a sharp-pitched croup. In addition, they cannot lie down flat, their heads are tilted forward, their shoulders are shrugged, their hands are propped up and they gasp for air, and they experience accelerated breathing and difficulty breathing. In the aura phase children with asthma will have a cough caused by bronchial mucous membrane allergy, starting with a dry cough of varying degrees and no sputum. During the exacerbation period the cough decreases, and towards the end of the attack the child’s bronchospasm and mucosal edema are reduced and a large amount of secretions can be discharged, at which time the cough and sputum symptoms appear again. Children who have asthma attacks for a long time may also experience chest pain, which is mainly related to excessive fatigue of the respiratory muscles, and the symptoms of chest pain will be more serious if there is a combination of pneumothorax. In addition, if the asthma attack is severe, vomiting, incontinence, headache, dizziness, confusion, drowsiness, coma and other symptoms may occur. The consequences of asthma in children can be serious, so when these symptoms occur in children, it is important to go to the hospital for examination and treatment in a timely manner.