A member asked:

What can cause chronic bronchitis with normal lung function test, no relation to allergy, infectious disease, tobacco and other chemical irritants?

A doctor has provided 1 answer
Dr. Matt Wachsman answered

Specializes in Internal Medicine

50% of us: have asthma that does not make us go to the doctor on a given year. Mostly, I think this is mis-diagnosis of not asthma, but actually inflammation due to a viral illness which varies from days to over a month. Asthma meds (especially monteleukast) fix it.

Answered 12/1/2014

3.5k views

Thank

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