Shingles is a painful and potentially dangerous viral disease, and it’s much more common than you may realize. About one in three unvaccinated adults in the United States will get shingles at some point, and the risk rises sharply after age 50.
The good news is that the shingles vaccine offers strong protection. According to the Centers for Disease Control and Prevention (CDC), it’s more than 90% effective for adults with healthy immune systems.
Before you decide whether you need the shingles shot, it helps to understand more about shingles and the vaccine.
What Is Shingles and What Causes It?
Shingles develops when the varicella-zoster virus — the same virus that causes chickenpox — becomes active again.
After you recover from chickenpox, the virus doesn’t leave your body. Instead, it settles quietly in your nerve tissue. Years or even decades later, the virus can become active again as shingles, often without warning.
Most adults don’t realize the virus is still there. But more than 99% of Americans born before 1980 have had chickenpox, even if they don’t remember it. That means almost everyone carries the virus and can develop shingles later in life.
This is why shingles feels so random — you can be healthy and active yet still have the virus become active again.
How shingles affects you
Shingles usually begins with pain, tingling, or burning on one side of the body. A few days later, a rash appears. Blisters then form, scabbing over in a week to 10 days, and typically clearing within two to four weeks.
Common shingles symptoms include:
- A stripe-like rash.
- Blisters.
- Chills.
- Fever.
- Headache.
- Pain or burning.
- Upset stomach.
For many people, the pain is intense. Even the light touch of clothing can hurt. Some describe it as sharp, stabbing, or electric; others say it feels like a deep ache that doesn’t let up.
The most serious shingles complication is postherpetic neuralgia (PHN), long-lasting nerve pain that can continue for months or years after the rash heals. PHN can make daily activities difficult and affect sleep, mood, and overall quality of life. The risk of PHN increases with age, which is one reason the CDC strongly recommends the shingles vaccination for adults 50 and older.
Shingles can also lead to vision problems, hearing issues, facial paralysis, pneumonia, or, in rare cases, swelling of the brain. Even though these complications are less common, they highlight why shingles prevention matters.
Who Should Get the Shingles Vaccine After Age 50?
The CDC shingles guidelines recommend the shingles vaccine for all adults 50 and older, even if you feel healthy.
Shingrix, the brand name of the vaccine currently used in the United States, replaced the Zostavax vaccine in 2020. You should get the Shingrix shingles vaccine if:
- You previously received Zostavax. (Research shows Shingrix provides much stronger, longer‑lasting protection against shingles and its complications than Zostavax.)
- You’re 50 or older.
- You’ve had chickenpox.
- You’ve had shingles before.
- You’ve never had shingles.
Not sure if you had chickenpox? Assume you did, and get the shingles vaccine.
Why wait until you’re 50 for the shingles vaccination?
The reason the CDC recommendation starts at age 50 is twofold:
- PHN is far more likely after 50.
- Shingles becomes more common and severe as you age.
Age is the biggest risk factor for shingles because your immune system naturally weakens over time. Vaccination boosts your immune system and helps prevent the virus from becoming active again.
Also, vaccination is the only proven way to significantly reduce your risk. Healthy habits, supplements, or lifestyle changes cannot prevent shingles.
Sail past 50 without this vaccine? Good news — you’re never too old to get the shingles vaccination.
Shingles Vaccine for Adults with Prior Shingles
A common question is whether you still need the vaccine if you already had shingles. According to the CDC, the answer is yes. Shingles can return, and the vaccine lowers your risk of another painful episode.
You only need to wait until the rash has fully healed before getting vaccinated.
Many people who’ve had shingles once say they never want to experience it again. The vaccine is the best way to reduce that risk. Vaccination after shingles also helps protect you from PHN if the virus reactivates again.
Getting the Shingles Shot If You Have a Weakened Immune System
Immunocompromised adults 19 and older should also get the shingles shot, according to the CDC shingles guidelines. You may have a weakened immune system from a:
- Health condition — Such as cancer, HIV, or certain genetic disorders
- Medical treatment — Such as chemotherapy, radiation, stem‑cell transplant, or certain medications.
Shingles Vaccine Two-Dose Schedule
Shingrix is a two-dose vaccine. To get the vaccine’s strong, long-lasting shingles protection, follow the two-dose schedule:
- Dose 1 — Any time.
- Dose 2 — Two to six months after the first dose.
If you have a weakened immune system, your provider may shorten the time between doses to one to two months.
Completing both doses is key to getting the full benefit of the vaccine. But if you miss the six-month window, you don’t need to restart the series. Just get the second dose as soon as possible.
Current CDC data shows that Shingrix provides strong protection for at least seven years. Ongoing research continues to track immunity over time.
Shingles Vaccine Effectiveness and Risks
Shingrix is one of the most effective adult vaccines available. For adults 50 and older with healthy immune systems, it’s more than 90% effective at preventing shingles and PHN.
This level of protection is especially important because shingles becomes more common — and more severe — as you age.
According to the CDC, the shingles vaccine is safe, and most people tolerate it well.
Common side effects of the shingles shot
Like any vaccine, the shingles vaccine can cause side effects, but most are mild to moderate and last two to three days. Many people report mild, flu-like symptoms following their shingles vaccine. Other common side effects include:
- Fatigue.
- Fever or chills.
- Headache.
- Muscle pain.
- Redness or swelling at the injection site.
- Sore arm.
- Upset stomach.
These temporary side effects show that your immune system is responding to the vaccine.
Severe reactions
Severe allergic reactions to the shingles vaccine are rare. The CDC advises seeking immediate medical care if you experience:
- A fast heartbeat.
- Difficulty breathing.
- Dizziness or weakness.
- Hives.
- Swelling of the face or throat.
So, Do You Need the Shingles Shot?
If you’re over 50, the answer is almost always yes. The shingles vaccine is safe, effective, and strongly recommended by the CDC.
Vaccines play a major role in healthy aging. The shingles vaccine is an important adult vaccination because it prevents a painful disease and long-term nerve damage.
If you’re 50 or older (or 19 or older with a weakened immune system), talk with your doctor or pharmacist about getting Shingrix. Most pharmacies offer it without an appointment, making it easy to fit into your schedule.
A two-dose series now can save you from months or years of pain later.
Sources
Centers for Disease Control and Prevention. “Shingles Vaccination.” Accessed February 2026.
https://www.cdc.gov/shingles/vaccines/index.html. Link.
Centers for Disease Control and Prevention. “Shingles Symptoms and Complications.” Accessed February 2026. https://www.cdc.gov/shingles/signs-symptoms/index.html. Link.
Centers for Disease Control and Prevention. “Shingles Facts and Stats.” Accessed February 2026. https://www.cdc.gov/shingles/data-research/index.html. Link.
Centers for Disease Control and Prevention. “Clinical Overview of Shingles (Herpes Zoster).” Accessed February 2026. https://www.cdc.gov/shingles/hcp/clinical-overview/index.html. Link.
Centers for Disease Control and Prevention. “What You Can Expect After Getting Shingrix Vaccine Fact Sheet.” Accessed February 2026. https://www.cdc.gov/shingles/communication-resources/shingles-vaccine-fact-sheet.html. Link.