Why Is My Arm Sore And Red After Flu Shot

The flu shot is an essential part of protecting yourself from the flu virus. However, some people experience side effects after getting a flu shot, including arm soreness and redness.

These side effects are usually mild and go away within a few days. However, it is important to understand why they occur so that you can take steps to minimize the discomfort.

The flu shot is made up of inactivated flu viruses. When you get a flu shot, your immune system is stimulated to produce antibodies against these viruses. This process can cause inflammation at the injection site, which can lead to arm soreness and redness.

The severity of the side effects can vary from person to person. Some people may only experience mild discomfort, while others may have more severe pain and redness.

There are a few things you can do to minimize the discomfort from a flu shot:

Apply a cold compress to the injection site.
Take a pain reliever, such as ibuprofen or acetaminophen.
Avoid strenuous activity that could irritate the injection site.

If the arm soreness and redness are severe or do not go away after a few days, it is important to see a doctor.

The flu shot is a safe and effective way to protect yourself from the flu virus. However, it is important to be aware of the potential side effects, including arm soreness and redness.