Asthma manifestations 1. Sudden onset of wheezing is the main feature of asthma in children, the wheezing symptoms of asthma in children vary greatly according to the severity of asthma, and children may have a high pitched wheezing sound and a “sibilant” sound when exhaling, similar to the sound of a wind box. 2. The frequency of breathing is accelerated and breathing is difficult, and infants may show open-mouth breathing and nasal flapping. 3. Many children may have a cough. 4.Severe attacks may be characterized by irritability, cyanosis, pallor, and cold sweat. On examination, the trigeminal sign, increased heart rate, and croup in both lungs can be seen. Further aggravation may show manifestations of heart failure such as jugular venous anger, swelling, medium and small vesicular sounds in the lung floor, and enlarged liver. The main measures to avoid acute attacks of asthma are as follows 1. Avoid contact with allergens, wind-borne pollen, mold spores, mites, etc.; 2. Enhance physical fitness and encourage children to participate in appropriate activities, such as radio exercises, walking, swimming, etc., without sudden strenuous exercise; 3. Pay attention to timely increase (morning and evening) and decrease (noon) clothing; 4. Children with a history of asthma can take oral montelukast to prevent attacks before entering September Once the aura of asthma attack (such as runny [snot, sneezing, coughing) appears, you should consult a doctor promptly and increase the dose of inhaled glucocorticoid appropriately for about 1 week.