Cough variant asthma is a special type of asthma with chronic cough as the main or only clinical manifestation. It is characterized by irritating dry cough, nighttime and early morning cough, and its duration exceeds two months. There is no obvious symptoms such as wheezing, shortness of breath, and dyspnea, but there is a high airway reaction, which is often induced after inhaling irritating odor and cold air, and usually occurs at night or in the early morning. Usually, the application of cough relieving and expectorant drugs and antibiotics is ineffective, and regular treatment should be carried out according to asthma. Medication is the main treatment, usually using inhaled corticosteroids combined with bronchodilators (such as salmeterol, salbutamol), etc. It is recommended that the treatment should be at least eight weeks, and some patients need long-term treatment. If the response to inhaled hormone treatment is poor, glucocorticoid can be taken orally for a short time (such as Metrola). It is suggested that patients should be treated under the guidance of specialists.
