Last week, the CDC made some changes to its coronavirus vaccine guidelines by adding three new side effects to the list. Before the change, the agency only listed six potential side effects on their website. The new guidelines, however, increased that number to nine.

The newly added side effects are redness, muscle pain and nausea. Although these adverse reactions are uncomfortable, they’re actually a good thing. Experiencing one of these is a strong sign that your immune system is responding to the vaccine and developing antibodies. It takes around two weeks for your immune system to reach maximum protection after receiving your second jab.
The CDC guidelines also provide some tips on how to deal with the side effects. “Talk 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,” the guidelines read.
“You can take these medications to relieve post-vaccination side effects if you have no other medical reasons that prevent you from taking these medications normally.”
Additional information you should know before getting your vaccine: