After getting vaccinated, you may have some side effects for a few days. These side effects are normal signs that your body is building protection. Some people have no side effects. 

Common Side Effects

On the arm where you got the shot:

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  • Pain

  • Redness

  • Swelling

Throughout the rest of your body:

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  • Tiredness

  • Headache

  • Muscle pain

  • Chills

  • Fever 

  • Nausea

Helpful Tips

The CDC recommends talking to your doctor about taking over-the-counter medicine, such as ibuprofen, acetaminophen, aspirin, or antihistamines, for any pain and discomfort you may experience after getting vaccinated. 

It is NOT recommended to take these medicines before vaccination for the purpose of trying to prevent side effects.

To reduce pain and discomfort where you got the shot:

To reduce discomfort from fever:

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  • Apply a clean, cool, wet washcloth over the area

  • Use or exercise your arm

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  • Drink plenty of fluids

  • Dress lightly

When to Call a Doctor

Discomfort from pain or fever is a normal sign that your body is building protection.

The CDC recommends contacting your doctor or healthcare provider:

  • If the redness or tenderness where you got the shot gets worse after 24 hours

  • If your side effects are worrying you or do not seem to be going away after a few days

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