SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/antibiotics-dont-cure-colds

You have a bad cold. Will antibiotics help you get better faster?

No. Colds are caused by viruses, and antibiotics don't work on viruses.

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The Just Right card

Too littleIgnore a cold that lasts for weeks
Too muchAsk for antibiotics for every sniffle
Just rightTreat symptoms; ask a professional if concerned

Huh, didn't know that: Thick yellow or green mucus does not mean you need an antibiotic. It happens with ordinary colds too.

The dad joke
What do you call a sick crocodile? An illigator.
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References

Answer: No, colds are viruses and antibiotics can't touch them. Antibiotics treat certain infections caused by bacteria, not viruses. Colds are caused by viruses, so antibiotics won't make you feel better. Unneeded antibiotics can still cause side effects.

  1. CDC: Antibiotic Use, About www.cdc.gov/antibiotic-use/about/index.html
    Antibiotics DO NOT work on viruses.
    Checked 2026-10-09.
  2. CDC: Antibiotic Use, About (same page, cold list) www.cdc.gov/antibiotic-use/about/index.html
    Colds and runny noses, even if the mucus is thick, yellow or green
    Checked 2026-10-09.

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