How long does phlegm last after a cold?

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asked Mar 21, 2019 in Other- Health by PeLoar (320 points)
How long does phlegm last after a cold?

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answered Mar 21, 2019 by Jodie (35,100 points)
After the cold virus has gone away then the phlegm you are coughing up can last for 1 to 2 weeks and in some cases depending on how severe the cold was the phlegm can easily last for 4 weeks.

In my experience though I usually cough up phlegm after a cold for 2 weeks and by then the phlegm is completely gone.

If you're still coughing up phlegm after 4 weeks then you might have bronchitis and should see a doctor or you may have a more severe cold.

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