The seasonal flu vaccine is important for protection against the influenza virus. Most people who get influenza will recover in a few days to less than two weeks, but some people will develop life-threatening complications (such as pneumonia) as a result of the flu, reports the CDC. Symptoms of influenza include fever, cough, fatigue, sore throat, stuffy or runny nose, body aches, chills, and headache. The influenza vaccine is an inactivated vaccine (containing killed virus) that is given as an injection. There are some common side effects of the flu shot that you should be aware of.
Injection Site Complications
According to the Centers for Disease Control and Prevention (CDC), you may experience soreness, redness or swelling where the shot was given. A warm soak or acetaminophen may help alleviate soreness.
Fever and Headache
You may experience a low-grade fever or headache following the flu shot. Acetaminophen or Ibuprofen may help to relieve headache and reduce fever. If you develop a fever of 104 degrees Fahrenheit or higher, contact your health-care provider.
Muscle Aches
Muscle aches are a common side effect following influenza vaccine. You may need to rest and take it easy until you are feeling better. Ibuprofen may help to relieve muscle aches and pains.
Allergic Reaction
In rare cases, a severe allergic reaction may occur following vaccination. Signs of serious allergic reaction can include breathing problems, hoarseness or wheezing, hives, paleness, weakness, a fast heartbeat and dizziness, according to the CDC. If you experience any of these symptoms, seem emergency medical attention.
