Cough-variant asthma is somewhat difficult to diagnose because the cough may be the only symptom, and cough itself may appear to be bronchitis or cough associated with postnasal drip.

• 要诊断咳嗽变异性哮喘是有些困难的，因为咳嗽可能是唯一的症状，而且咳嗽本身可能表现为支气管炎或伴流涕症状。