You may experience mild to moderate side effects after receiving the vaccine. Side effects typically go away on their own after a few days. The most commonly reported side effects are:
- Pain, swelling, and redness at the injection site.
- Pain, tenderness and swelling of the lymph nodes in the same arm of the injection.
- Muscle pain.
- Joint pain.
Different people may experience different side effects, even if they receive the same vaccine.
The process of building immunity can cause symptoms. These symptoms are normal and show that your body’s immune system is responding to a vaccine. Other routine vaccines, like the flu vaccine, have similar side effects.
If you experience discomfort after the first dose of the vaccine, it is very important that you still receive the second dose a few weeks later for full protection.
For in-depth information about the side effects of the vaccines, see the CDC’s report on the Pfizer vaccine and the Moderna vaccine.