But are they really necessary?
According to the CDC, in a word: yes.
What can you expect after your booster shot?

Pain at the injection site.
You’ve heard this song before.
But when it comes to a booster shot, your symptoms are likely to be less severe.

It’s also important to stay hydrated afterward so drink plenty of water.
Not everyone needs a booster shot immediately
Does everyone need a booster right away?
Some immunity experts don’t think so.

But all this gets thrown out the window if you have an underlying illness that undermines your immunity.
“The potential benefits of [a booster] providing greater immunity are there and the risks are small.