What's the difference between allergic cough and allergic asthma?

The main difference between allergic cough and allergic asthma is whether there is airway hyperresponsiveness, and whether accumulated lower respiration affects lung function.

Allergic cough, also known as cough variant asthma, is a special type of allergic asthma, with only symptoms of dry cough, some with itchy throat and always want to cough, and some with sneezing and runny nose.

Allergic asthma can lead to wheezing, chest tightness and severe dyspnea.