FluMist, also known as the nasal spray flu vaccine, is a needle-free option for annual flu vaccination. It uses a weakened, live flu virus to stimulate your immune system. While generally safe, it’s important to understand the potential side effects. This article provides a comprehensive overview of FluMist, its side effects, and other important information.
Common and Mild Side Effects of FluMist
FluMist can cause mild side effects, which typically resolve within a few days. These are more common and generally not serious. According to the original study the following were the most common side effects:
- Runny nose or nasal congestion
- Sore throat
- Cough
- Headache
- Muscle aches
- Low-grade fever
If these side effects persist or worsen, consult your doctor or pharmacist.
Rare and Serious Side Effects
While less common, serious side effects from FluMist are possible. Seek immediate medical attention if you experience any of the following:
- Severe allergic reaction: Hives, facial swelling, difficulty breathing
- Guillain-Barré Syndrome (GBS): A rare neurological disorder
- Seizures: Uncontrolled shaking and loss of awareness
It is important to note that these side effects are rare, and the benefits of flu vaccination generally outweigh the risks.
Side Effects in Children
Children may experience similar side effects as adults, but with some differences. Common side effects in children include:
- Runny nose
- Headache
- Vomiting
- Muscle aches
- Fever
Children with a history of wheezing or asthma may be at an increased risk of wheezing after receiving FluMist.
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Alt text: A healthcare provider administers the FluMist nasal spray vaccine to a young child.
Detailed Look at Common Side Effects
Allergic Reactions
As with any vaccine, allergic reactions are possible with FluMist. Mild reactions can include skin rash, itching, or flushing. Severe allergic reactions are rare but require immediate medical attention. Symptoms include swelling, difficulty breathing, and wheezing.
Fever
Fever is a common side effect, particularly in children. A study showed that fever was reported in a percentage of children 2-6 years old:
- Between 13% and 16% of children who received FluMist
- 11% of children who received a flu shot or a placebo
If you or your child develops a fever after receiving FluMist, consult your doctor for advice on managing the fever.
Diarrhea
Diarrhea is not a common side effect reported in clinical trials, but it has been reported in post-marketing studies. If you experience diarrhea after receiving FluMist, talk to your doctor or pharmacist for recommendations on how to manage this side effect.
Stuffy Nose
Nasal congestion is one of the most common side effects of FluMist, affecting both adults and children. Studies have shown that a stuffy nose occurred in:
- 9% of people who received FluMist
- 2% of people who received a placebo
In children ages 2 to 6 years, a runny nose or nasal congestion was reported in:
- between 51% and 58% of children who received FluMist
- between 42% and 50% of children who received a flu shot or a placebo
Sore Throat
A sore throat is another common side effect of FluMist. Clinical trials have reported sore throats in both adults and children.
In a clinical trial of adults ages 18 to 49 years, it was shown that a sore throat occurred in:
- 28% of people who received FluMist
- 17% of people who received a placebo
If you experience a persistent or severe sore throat after receiving FluMist, consult your doctor for relief options.
Who Should Get FluMist?
FluMist is approved for use in healthy individuals aged 2 through 49 years. However, it is not recommended for everyone.
FluMist is NOT recommended for:
- Children younger than 2 years old
- Adults 50 years and older
- Pregnant women
- People with weakened immune systems
- People with certain medical conditions, such as asthma or egg allergy
- People who have taken antiviral drugs for the flu in the past 48 hours
Consult your doctor to determine if FluMist is the right choice for you.
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Alt text: A patient discussing vaccination options with their healthcare provider.
How Long Do Side Effects Last?
The duration of side effects from FluMist can vary. Most side effects are mild and resolve within a few days. However, some people may experience symptoms for up to two weeks. If your symptoms persist or worsen, consult your doctor to rule out other potential causes.
Conclusion
FluMist is a convenient and effective option for flu vaccination for eligible individuals. Understanding the potential side effects, both mild and serious, is essential for making an informed decision. Consult your doctor to determine if FluMist is right for you and to address any concerns you may have. Staying informed and proactive is key to protecting yourself and your community from the flu.
