The Bottom Line

Shingles is a painful skin rash caused by the same virus that causes chickenpox. It can happen to anyone who has had chickenpox, but it is most common in people over 60. Starting antiviral medicine within 72 hours of the rash appearing can make it less severe and lower your chance of lasting nerve pain. A vaccine can prevent shingles in most people.

What Is Shingles?

Shingles — also called herpes zoster — happens when the chickenpox virus wakes up after lying dormant in your nerve cells for years or even decades. The virus travels down the nerve to your skin and causes a painful, blistering rash. About 1 in 3 people in the United States will get shingles in their lifetime. Your risk goes up sharply after age 60, when your immune system naturally weakens.

People with weakened immune systems — such as those on chemotherapy, taking steroids, or living with HIV — are 10 to 20 times more likely to develop shingles.

Signs and Symptoms

Shingles often gives you a warning 1 to 3 days before the rash shows up:

  • Burning, shooting, or tingling pain on one side of your body
  • Skin sensitivity — even a light touch may hurt
  • Itching or numbness in one area
  • Mild fever, headache, or feeling run-down (in about 1 in 10 people)

Once the rash appears, you will see clusters of fluid-filled blisters on a red, irritated patch of skin. The rash almost always appears on one side of your body in a band or stripe shape — most often on the torso, but sometimes on the face or neck. The blisters break open and crust over within 1 to 2 weeks. Most rashes heal fully in 2 to 4 weeks.

About 10 to 15% of shingles cases involve the face near the eye (ophthalmic shingles). This is a medical emergency — it can damage your vision if not treated right away.

What Causes Shingles?

Shingles is caused by the varicella-zoster virus (VZV) — the same virus that causes chickenpox. After you recover from chickenpox, the virus stays hidden in nerve cells near your spinal cord and brain. If your immune system weakens — from age, illness, stress, or medications — the virus can reactivate and travel to your skin.

You cannot catch shingles from someone else. However, if you have active shingles blisters, you can spread the virus to someone who has never had chickenpox, and they could develop chickenpox (not shingles). Keep your rash covered and wash your hands often while blisters are open.

Treatment Options

Antiviral medications (most important step): Starting antivirals within 72 hours of the rash reduces pain, shortens the outbreak, and lowers the risk of lasting nerve pain. Common options include valacyclovir (Valtrex), acyclovir, or famciclovir taken for 7 to 10 days. If blisters are near your eye, you may also need IV antivirals.

Pain relief: Over-the-counter pain relievers like ibuprofen or naproxen help with mild pain. For more severe pain, your doctor may prescribe gabapentin, lidocaine patches applied to the rash area, or stronger medications. Managing pain early may help prevent it from becoming long-term.

Postherpetic neuralgia (PHN) treatment: PHN is nerve pain that lasts more than 3 months after the rash heals. It affects about 50% of people over 60 who get shingles. Treatments include prescription medications such as gabapentin, pregabalin, duloxetine, or tricyclic antidepressants. Topical lidocaine patches and capsaicin cream can also help.

Vaccine (prevention): The Shingrix vaccine is more than 90% effective at preventing shingles in adults 50 and older. It is given in two doses and is recommended even if you have had shingles before.

When to See a Dermatologist

  • You have a painful rash on one side of your face or body — seek care immediately, ideally within 24 to 48 hours
  • The rash is near or on your eye — go to urgent care or an ER right away
  • Your pain is severe or not improving with over-the-counter medications
  • The rash is spreading widely or looks infected (increased redness, warmth, pus)
  • You are immunocompromised — you need closer monitoring and possibly IV treatment
  • You still have pain more than 3 months after the rash healed (PHN)
  • You are 50 or older and have not yet received the Shingrix vaccine

Frequently Asked Questions

Can I give shingles to someone else?

You cannot give someone shingles directly. But the fluid in your blisters contains the chickenpox virus. If someone who has never had chickenpox or the chickenpox vaccine touches your open blisters, they could develop chickenpox. Keep your rash covered until all the blisters have crusted over.

How long will my pain last?

For most people, the acute pain from shingles improves as the rash heals over 2 to 4 weeks. However, about 40% of people still have some pain at 3 months. When pain lasts longer than 3 months, it is called postherpetic neuralgia (PHN). PHN is most common in older adults — it affects about half of people over 60. Treatments are available, and many people see significant improvement over time.

Should I get the shingles vaccine even if I have already had shingles?

Yes. The Shingrix vaccine is recommended even if you have had shingles before, because it can reduce the chance of getting it again. Shingles recurs in about 1 to 5% of people who have had it once. Talk to your doctor about the right timing after your outbreak has healed.

Why is shingles pain so bad?

Shingles directly inflames and damages nerve fibers. The virus replicates inside your nerve cells, triggering a strong inflammatory response that causes intense, burning pain. When the nerve damage is significant, the pain system can stay in an overactive state even after the virus is gone — this is what causes PHN. Early antiviral treatment reduces nerve injury and lowers your PHN risk by 40 to 50%.

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Trusted Resources

Always consult a board-certified dermatologist or your healthcare provider for diagnosis and treatment of your specific condition. This article is for educational purposes only.