Shocking Long-Term Effects of Chickenpox You Never Knew!

June 15, 2024

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Chickenpox, a common childhood illness caused by the varicella-zoster virus (VZV), is often considered a mild and short-lived condition. However, what many people don’t realize is that chickenpox can have surprising and serious long-term effects, especially in adults. In this article, we’ll explore the potential complications of chickenpox and how vaccination can help prevent them.

The Lingering Threat: Shingles (Post-Herpetic Neuralgia)

One of the most significant long-term effects of chickenpox is the risk of developing shingles later in life. Shingles, also known as herpes zoster, occurs when the dormant varicella-zoster virus reactivates in the body, causing a painful rash and potential nerve damage[1][2].

Understanding the Connection Between Chickenpox and Shingles

When you contract chickenpox, the virus remains in your body even after you recover. It lies dormant in the nerve cells, waiting for an opportunity to reactivate. This typically happens when your immune system is weakened due to factors such as:

  • Age (shingles is more common in older adults)
  • Stress
  • Certain medications
  • Other health conditions[3][4]

The Pain of Post-Herpetic Neuralgia

One of the most debilitating aspects of shingles is the potential for long-lasting nerve pain, known as post-herpetic neuralgia (PHN). This pain can persist for months or even years after the shingles rash has healed, significantly impacting quality of life[1][3].

“The pain from post-herpetic neuralgia can be excruciating and unrelenting. It’s like having a constant burning sensation or electric shocks on your skin.” – Dr. Sarah Thompson, Neurologist

Preventing Shingles: The Importance of Vaccination

Fortunately, there is a way to reduce your risk of developing shingles and its complications: vaccination. The shingles vaccine, also known as the herpes zoster vaccine, can help prevent shingles or lessen its severity if you do develop it[1][2].

Age GroupRecommended Vaccine
50-59Shingrix (2 doses)
60+Shingrix (2 doses)

It’s important to note that even if you’ve had chickenpox, you can still benefit from the shingles vaccine. Talk to your healthcare provider about whether the vaccine is right for you.

Beyond the Rash: Other Chickenpox Complications in Adults

While shingles is one of the most well-known long-term effects of chickenpox, it’s not the only potential complication. Adults who contract chickenpox are at higher risk for several serious health issues.

Pneumonia: A Serious Respiratory Complication

Varicella pneumonia, a lung infection caused by the chickenpox virus, is more common in adults than in children. It can lead to severe breathing difficulties and even respiratory failure in some cases[1][2].

Symptoms of varicella pneumonia may include:

  • Cough
  • Shortness of breath
  • Chest pain
  • Fever

If you develop these symptoms during or after a chickenpox infection, seek medical attention immediately.

Encephalitis: When Chickenpox Affects the Brain

In rare cases, the varicella-zoster virus can cause inflammation of the brain, a condition known as encephalitis. This serious complication can lead to:

  • Seizures
  • Confusion
  • Balance and coordination problems
  • Speech difficulties[1][2]

Prompt diagnosis and treatment are crucial to prevent long-term brain damage.

Bacterial Skin Infections: A Painful Complication

The chickenpox rash, with its fluid-filled blisters, can provide an entry point for bacteria. This can lead to painful bacterial skin infections such as:

  • Cellulitis
  • Impetigo
  • Necrotizing fasciitis (a rare but life-threatening infection)[1][2]

To reduce the risk of skin infections, it’s important to keep the chickenpox rash clean and avoid scratching the blisters.

Protecting Yourself and Others: Chickenpox Immunity and Vaccination

One of the best ways to prevent the long-term effects of chickenpox is to avoid contracting the virus in the first place. This is where chickenpox immunity and vaccination come into play.

How Long Does Chickenpox Immunity Last?

If you’ve had chickenpox, you typically develop lifelong immunity to the virus. However, in rare cases, people can get chickenpox more than once[5][6].

For those who haven’t had chickenpox, the chickenpox vaccine offers protection. The vaccine is usually given in two doses during childhood, but adults who have never had chickenpox or been vaccinated can also receive it[1][2].

The Importance of Chickenpox Vaccination

Getting vaccinated against chickenpox not only protects you from the virus and its potential long-term effects but also helps prevent the spread of the virus to others who may be more vulnerable, such as:

  • Infants
  • Pregnant women
  • People with weakened immune systems

By choosing to get vaccinated, you’re contributing to herd immunity and helping to safeguard public health.


  • Chickenpox can have serious long-term effects, especially in adults
  • Shingles, a painful condition caused by the reactivation of the chickenpox virus, is a common long-term complication
  • Adults who get chickenpox are at higher risk for complications such as pneumonia, encephalitis, and bacterial skin infections
  • Vaccination is the best way to prevent chickenpox and its potential long-term effects
  • If you’ve had chickenpox, you typically have lifelong immunity, but vaccination is still recommended to prevent shingles


Can adults get shingles after chickenpox?

Yes, shingles is caused by the reactivation of the chickenpox virus, which can remain dormant in the body for years after the initial infection.

How long does chickenpox immunity last?

Typically, once you’ve had chickenpox, you develop lifelong immunity to the virus. However, in rare cases, people can get chickenpox more than once.

Is there a chickenpox vaccine for adults?

Yes, adults who have never had chickenpox or been vaccinated can receive the chickenpox vaccine.

How can I prevent shingles?

Getting the shingles vaccine can help reduce your risk of developing shingles and its complications.

Does chickenpox cause lasting problems?

While most people recover from chickenpox without long-term issues, the virus can cause serious complications, especially in adults, such as shingles, pneumonia, encephalitis, and bacterial skin infections.


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