Why does my arm hurt after a vaccine, and will moving it really fix it?

October 29, 2023

With health experts recommending Americans get two (or even three) different vaccines this cold and flu season, you may find yourself rolling up your sleeve a couple of times soon. 

You may also notice your arm hurts for a day or two after getting your shots. Why is that? 

Fortunately, you aren’t alone. 

For all three of the vaccine health experts are recommending this season — the flu shot, the newest COVID booster, and the RSV vaccine for older Americans — the CDC notes pain, redness, and swelling at the injection site are among the most common side effects.

Read more at The Hill.

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