Long term side effects of flu shot

Flu shots contain an ingredient called flu virus, which is made in your body but is not harmful.

Side effects like soreness, redness, and swelling are just like the common side effects of the flu, such as a runny nose and a stuffy nose.

It’s normal to experience some side effects. These usually go away within a few days.

Side effects from a flu shot

Soreness or redness around the injection site

Swelling at the injection site is common, and it can last for a few days.

You can try soaking in a warm bath or applying a cold compress to the site.

Swelling at the injection site is usually temporary and goes away on its own.


This is a common flu symptom. It’s often mild and doesn’t affect your daily activities.

But if you’re experiencing more intense fatigue, you should see your doctor.


This is a common flu symptom. It usually goes away on its own.

But if it doesn’t, you should see your doctor.


Coughing is a common flu symptom. When you cough, you usually try to clear your lungs of the mucus that’s stuck there.

But sometimes, coughing can cause you to stuff your lungs with mucus, which can be painful.

It’s also possible to get a lung infection from coughing.

Skin irritation

If you’re allergic to the flu vaccine, you may have a rash at the injection site.

It’s not a common side effect, but it can happen.


Fever is a common flu symptom.

It’s important to treat a fever if you have one.

A fever raises your body temperature. The higher the body temperature, the faster your body’s natural defenses can kick in.

But if you have a fever and you have a fever higher than 101.3 F, you should seek medical attention.


There’s a small possibility that the flu vaccine can cause seizures, which are common flu symptoms.

But a seizure is usually caused by another condition, such as an infection, a brain tumor, or a stroke.

Vomiting or diarrhea

For the most up-to-date information on COVID-19, visit the CDC website.

If you have the flu, you may also experience the following symptoms:

  • Nausea
  • Vomiting
  • Diarrhea

These are all common flu symptoms. They’re just the flu symptoms, not COVID-19 symptoms.

In some cases, COVID-19 can cause similar symptoms. In those cases, you should call your doctor.

Diagnosing the flu

You may think you have the flu because it’s your first time experiencing flu-like symptoms.

But it’s important to get a proper diagnosis. Your doctor can give you the correct diagnosis.

It’s very unlikely that you have the flu if you don’t have any of the following symptoms:

  • Chills
  • Loss of smell or taste
  • Cough
  • High fever
  • Muscle aches
  • Sore throat
  • Fatigue

If you do have the flu, your doctor may recommend that you try a COVID-19 test.

If you do test positive for COVID-19, your doctor can give you the proper diagnosis.

COVID-19 tests are usually done by swabbing the inside of your nose or your back.

If you have COVID-19, you’ll likely need to stay home and rest. However, you can still go into the doctor’s office to get tested if you’re experiencing flu-like symptoms.

If you do test positive for COVID-19, you’ll be given an antiviral drug to take.

If you test negative for COVID-19, you can resume normal activities.

How to treat the flu?

The best way to treat the flu is to rest and stay hydrated.

It’s important to get plenty of rest and rest in moderation.

You should also avoid things that make your symptoms worse.

You should also avoid things that can be harmful to your body if you have a fever.

The medication for your flu is usually a type of antiviral medication called Tamiflu.

If you have the flu and are experiencing any of the following symptoms, you should see your doctor:

  • Fever
  • Headache
  • Sore muscles
  • Rapid breathing
  • Shortness of breath

The type of Tamiflu you should take depends on your symptoms.

If you have a high fever and shortness of breath, you should take a type of Tamiflu called Fludara.

If you experience any of the symptoms above, you should take Tamiflu.

Tamiflu can be taken with or without food. Your doctor may also recommend that you take Tamiflu for the first 24 hours after your flu symptoms clear up.

If you’re experiencing any of the symptoms above, you should see your physician.

COVID-19 treatments

While the flu can be dangerous, COVID-19 can be deadly.

It’s important to get the proper COVID-19 treatment. But you should still practice self-isolation if you’re experiencing flu-like symptoms.

You can also receive the COVID-19 vaccine if you’re eligible.

If you’re eligible, you can receive the standard COVID-19 vaccination.

The flu vaccine is usually given in two doses.

The COVID-19 vaccine is given in a single dose.

You should receive the COVID-19 vaccine as soon as you’re eligible, and then receive a second dose.

If you receive the vaccine and you have COVID-19, the vaccine will prevent you from becoming sick with COVID-19.

The flu vaccine isn’t effective against COVID-19.

The flu vaccine may help protect you from other flu-related complications, such as:

  • Bronchitis
  • Sinusitis
  • Ear infections
  • Pneumonia
  • Infection of the brain, spinal cord, or nerve

What’s the long-term outlook?

The flu can be dangerous if it’s not treated. But it’s important to get the flu vaccine every year.

It’s also important to get the flu vaccine if you’re at risk for the flu.

You should still get the flu vaccine even if you’re vaccinated for the COVID-19 vaccine.

You should still receive the flu vaccine if you’re pregnant.

The flu vaccine is also important for people with certain medical conditions. But you should still get the flu vaccine if you’re at risk for catching the flu.

You should also get the flu vaccine if you:

  • Are at least 65 years old
  • Have a chronic lung condition, such as COPD or asthma
  • Have heart disease or a history of heart attack
  • Have diabetes

The takeaway

You can get the flu vaccine as early as October, and it’s generally safe to get the flu vaccine.

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