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Tustin, CA
A 29-year-old female asked:

How do i know if cough of 1.5 months is bacterial or viral? caused from sinus infection, post nasal drip frm a cold.if bacterial, which antibiotic to take? don't want to become resistant to antibiotic

2 doctor answers3 doctors weighed in
Dr. Laurence Badgley
General Practice 53 years experience
Unlikely: A cough of this duration requires a doctor to listen to your lungs and to take an x- ray to rule out a tissue mass in the lungs.
Dr. Mark Loury
ENT and Head and Neck Surgery 39 years experience
Not viral: Viral illnesses resolve in 10-14 days so lingering cough could be bacterial subacute sinusitis, residual post nasal drip or airway inflammation. If bacterial Amoxicillin a good first choice. If cough persists then see md. Unlikely to develop resistance with infrequent antibiotic usage.

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Last updated Feb 24, 2020

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