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    My daughters got their flu shots today. How long does it take until the flu shot is effective?

    Answer by:
    Rod Moser, PA, PhD

    Primary Care, WebMD Medical Expert
    Ears: An Owner's Manual

    About two weeks.

    Is it a cold or the flu?

    Test your knowledge.

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    All About the Flu

    How long you're contagious and other flu facts.

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    Mucinex

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    Mucinex Fast Max Night Time

    Mucinex® Fast-Max®
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    Mucinex® Fast-Max®Night
    Time. Multi-symptom relief
    plus a nasal decongestant.
    Breathe easy. Sleep easy.

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