Evidence-anchored information about shingles
Shingles affects about 1 in 3 people. Understand what it is, what to do early, how treatment works, and what the vaccine means — based on CDC, WHO, and clinical evidence. No unproven cures. No treatment-avoidance.
Key facts at a glance
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What it is
strong evidence
Shingles is a reactivation of the varicella-zoster virus; about 1 in 3 people will develop it in their lifetime.
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72-hour window
strong evidence
Antiviral medication (aciclovir, valaciclovir, famciclovir) works best when started within 72 hours of the rash appearing.
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Vaccine efficacy
strong evidence
The recombinant vaccine (Shingrix) is over 90% effective in immunocompetent adults; protection is still about 73% at 10 years.
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Vaccine side effects
strong evidence
Side effects are real and stated transparently: grade-3 reactions that prevent normal activity occurred in about 17%, usually lasting 2–3 days.
Explore the site
What is shingles?
Learn what causes shingles, how the virus reactivates, and how transmission works.
Early signs & when to act
Why the first 72 hours matter and what early symptoms to watch for.
Treatment: antivirals & symptom relief
What works, what the evidence says, and evidence-backed supportive care.
Postherpetic neuralgia (PHN)
The most common complication: what it is, who's at risk, and what helps.
The vaccine: weighing it up
Benefits, side effects, and who should not get the vaccine — honestly.
Living with shingles
Supportive care, coping strategies, and what helps day-to-day.
When to see a doctor
Red flags: eyes, ears, immunocompromised — when urgent care matters.