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What causes nasal congestion and cough after recovering from flu?

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Posted on Tue, 24 Apr 2018
Question: I had the flu a month ago. I no longer have a fever (feeling loads better) but I still have lingering Nasal Congestion and a cough. I was wondering when if/when I should schedule an appointment with a doctor or if I need to let the lingering symptoms run their course.
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Answered by Dr. Michelle Gibson James (38 minutes later)
Brief Answer:
post viral cough can occur in some persons

Detailed Answer:
HI, thanks for using healthcare magic

Cough can persist for up to 6 weeks after the flu.
It is called post viral or post infectious cough

Nasal congestion can linger in some persons though this is more likely if there is a previous history of allergies

The use of a anti histamine decongestant combination may help both symptoms eg zyrtec d, allegra d, claritine d, benadryl d.
You can try using one of these for at least 10 to 14 days and see if this would help.

A topical nasal spray such as nasonex, flonase, rhinocort, may also help as well.

If there any worsening during this time period or no improvement after or you remain concerned, then you should be seen

I hope this helps, feel free to ask any other questions
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Michelle Gibson James

General & Family Physician

Practicing since :2001

Answered : 16810 Questions

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What causes nasal congestion and cough after recovering from flu?

Brief Answer: post viral cough can occur in some persons Detailed Answer: HI, thanks for using healthcare magic Cough can persist for up to 6 weeks after the flu. It is called post viral or post infectious cough Nasal congestion can linger in some persons though this is more likely if there is a previous history of allergies The use of a anti histamine decongestant combination may help both symptoms eg zyrtec d, allegra d, claritine d, benadryl d. You can try using one of these for at least 10 to 14 days and see if this would help. A topical nasal spray such as nasonex, flonase, rhinocort, may also help as well. If there any worsening during this time period or no improvement after or you remain concerned, then you should be seen I hope this helps, feel free to ask any other questions