A member asked:

My brother has had a persistent, shallow cough for 6 months. it's usually a single cough every few hours. should he see a doctor?would could it be?

A doctor has provided 1 answer
Dr. John Chiu answered

See doctor: There are many causes for cough and at times no cause can be found despite exhaustive studies. 6 months are too long for a post-viral cough and this makes post-nasal drips from allergies the next likely probability. I recommend that he consult a doctor to get examined.

Answered 8/26/2017

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