How is cough variant asthma diagnosed?

Asthma: Cough is just a symptom of asthma. If your docotr hears wheezing and is recurrent problem, then you may have asthma for sure. Your docotr needs to do lung trests to establish diagnosis of asthma along with clinicla diagnosis.Some pts. Cough at night only & it becomes difficult 2diagnose as the docotr may not be able to listen for wheezing at this time unless u go 2 the er. All coughs is not asthma.

See below: Generally, if you have a persistent cough that has not resolved after possible antibiotic treatment for infections, meds for reflux, etc., but does resolve after talking a short acting bronchodilator like albuterol, then the action of the bronchodilator may have worked and thus cough variant asthma is possible.

Mostly by history: This is asthma which is primarily manifested by coughing and not measurable evidence of airway constriction. The response to low-dose inhaled steroid , bronchodilator, and/or leukotriene modifier supports the diagnosis. It is possible that this may be a prelude to persistent asthma later on in life.