Vaccines, like all medications, can have side effects. Side effects to COVID-19 vaccines are usually mild or moderate, and should last only a few days after vaccination. Side effects may be more common after the second dose.
Some people may notice a reaction around the part of the arm where the vaccine was given. The reaction may happen 1-2 days after vaccination, or a week or more after vaccination. In both situations, the reaction should only last a few days.
Common side effects to the COVID-19 vaccines are:
• Pain, redness or swelling where the vaccine was given
• Swelling and tenderness in the arm pit
• Muscle or joint pain
To help with side effects, use a cool cloth over the sore arm and ask your health care provider if you can take medication like acetaminophen (Tylenol) for pain and fever.
If you have concerns about any symptoms you develop after getting vaccinated, contact your health care provider.