1.First of all, review the diagnosis is not asthma. 2.Secondly, we should see if the drug is used in the right way, whether the lid is open when using aerosol, whether the bottle is shaken before and after spraying, and whether the child cries when inhaling the drug. If the medication is inhaled, the medicine should be rotated vertically before inhaling, and the medicine should be inhaled horizontally, and the tip of the tongue should not be placed against the mouth of the medicine when inhaling, and the air should not be blown into the hole of the medicine. When inhaling the medicine, you should inhale deeply and hold your breath for 5 seconds after inhaling. 3, whether to stay away from allergens, newly renovated houses, haze, etc. 4.Whether to eat food indiscriminately, such as too acidic, too sweet, too much, and food containing preservatives, food additives, artificial colors, flavors, etc., especially drinks, bagged milk, chewing gum, chocolate, etc. 5.Is the allergic rhinitis under control? 6.If all the above problems can be ruled out, we should go to the hospital to check whether there is any problem with the diagnosis.