Wheezing at the mouth of the throat, i.e., coughing like a bellows, is mostly caused by large airway stenosis or small airway stenosis. There are mainly the following cases: 1. The causes of large airway stenosis include large airway tumors, foreign body obstruction or external pressure masses, etc., which require prompt medical attention and further treatment; 2. Some wheezing is due to small airway stenosis, which is mostly seen in airway inflammatory diseases, such as asthma, chronic obstructive pulmonary asthma during acute attacks or acute exacerbations, which can lead to coughing, wheezing, and in severe cases, a pulling-box-like sound. Especially in asthma patients, only simple coughing symptoms during the day, wheezing and pulling the bellows will occur at night. It is necessary to seek medical attention or increase the dose of drugs to improve airway inflammation, control disease progression and improve current symptoms; 3. Some patients are not due to lung diseases that cause wheezing, such as acute or chronic cardiac insufficiency patients, when the airway becomes edematous, airway narrowing occurs and wheezing sounds appear, and patients in the second half of the night The inability to lie down and the need to breathe in a sitting position is called nocturnal paroxysmal dyspnea. In this case, we should consider whether the patient is suffering from wheezing due to cardiac insufficiency, and timely treatment should be provided to avoid disease progression and life-threatening conditions.