A member asked:

Lo has a persistent day and night cough,after having a cold 12 days ago.zyrtec (cetirizine) helps calm cough, could it be allergies?how long can cough linger?

A doctor has provided 1 answer
Dr. John Chiu answered

Weeks: Some of the viral infections can leave a lingering cough for many weeks although most tend to improve after 10 days. However if the cough gets worse or the child shows any sign of distress, bring him to the pediatrician immediately.

Answered 2/26/2016

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