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What causes pain in my arm after a flu shot?

Most flu shots are injected into the muscle, so you may have some pain in your arm after receiving a flu shot. The shot contains an inactivated, or killed, flu virus that prompts your body to create antibodies. Sometimes that reaction leads to swelling for a day or two at the injection site.

Continue Learning about Cold and Flu

Cold and Flu

Cold and Flu

Colds and flu are both viral infections, but have different symptoms. With a cold you will have symptoms such as a runny nose or a sore throat. Flu symptoms come on suddenly and may include fever, body aches or vomiting. While the...

re is no cure for either, there are treatments -- chicken soup, nasal sprays, rest -- which can help your feel better.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.