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WHAT YOU NEED TO KNOW:
The influenza vaccine is an injection given to help prevent influenza (flu). The flu is caused by a virus. The virus spreads from person to person through coughing and sneezing. Several types of viruses cause the flu. The viruses change over time, so new vaccines are made each year. The vaccine begins to protect you about 2 weeks after you get it. The flu shot usually injected into your upper arm. It may be given in your thigh. You may get a vaccine with a weak or dead virus.
Call 911 for any of the following:
- Your mouth and throat are swollen.
- You are wheezing or have trouble breathing.
- You have chest pain or your heart is beating faster than normal for you.
- You feel like you are going to faint.
Seek care immediately if:
- Your face is red or swollen.
- You have hives that spread over your body.
- You feel weak or dizzy.
Contact your healthcare provider if:
- You have increased pain, redness, or swelling around the area where the shot was given.
- You have questions or concerns about the influenza vaccine.
Apply a warm compress
to the injection area if you got a flu shot. Apply the compress as directed to decrease pain and swelling.
Follow up with your healthcare provider as directed:
Write down your questions so you remember to ask them during your visits.
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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.