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Varivax Side Effects

Serious Side Effects

There are a number of rare but serious side effects with Varivax that you should report to your healthcare provider. These include, but are not limited to:
  • A high fever
  • Any unusual behavior changes in a child (aside from the usual fussiness that typically occurs after vaccinations)
  • A seizure (usually related to a high fever)
  • Unusual bruising or bleeding (which may be a sign of low blood platelets)
  • Weakness, tingling, or paralysis (which may be signs of Guillain-Barré syndrome)
  • Pneumonia
  • Signs of an allergic reaction, such as:


    • An unexplained rash
    • Hives
    • Itching
    • Swelling of the mouth or throat
    • Wheezing
    • Difficulty breathing.


Generally, these serious problems are so rare that it is impossible to know if they are actually related to the vaccine.

Final Thoughts

It is possible that you may experience some or none of the Varivax side effects listed in this article. Unfortunately, there is no way for your healthcare provider to know beforehand if you will have side effects from a medicine that you have never tried.
Therefore, make sure to let your healthcare provider know if you develop any side effects. Also, let your healthcare provider know if you develop something that "just does not seem right." While it may not be a Varivax side effect, your healthcare provider will be able to diagnose and treat the problem.
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Varivax Vaccine Information

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