What Is Shingles?
Shingles is a painful, blistering rash caused by the varicella zoster virus, the same virus that causes chickenpox. After a chickenpox infection, the virus stays in the nerve tissue for years or even decades. When it reactivates, often triggered by stress, illness, or a weakened immune system, it travels along a nerve pathway to the skin and causes the shingles rash.
I’ve been diagnosing and treating shingles for over 40 years in my Upper East Side practice. The most important thing to know about shingles is that timing matters. Antiviral treatment works best when started within 72 hours of the rash appearing, so if you suspect shingles, getting seen quickly can make a real difference in how long it lasts and whether complications develop.
Signs and Symptoms
Shingles often starts before any rash is visible. Many patients feel tingling, burning, itching, or sharp pain on one side of the body several days before the rash appears. This early pain can be mistaken for a muscle strain or another unrelated issue.
Once the rash develops, it typically follows a distinct pattern:
- A band or strip of rash on one side of the body, following the path of a single nerve
- Red, fluid filled blisters that may look similar to chickenpox
- Blisters that scab over within seven to ten days
- Pain that ranges from mild to severe, described by many patients as burning, stabbing, or electric
- Fever, headache, fatigue, or sensitivity to light in some patients.
Shingles can appear anywhere on the body, but it’s most common on the torso and can also affect the face, including near the eye.
How is shingles different from other rashes? Poison ivy tends to appear wherever the skin touched the plant and doesn’t follow a nerve pattern. Herpes simplex (cold sores or genital herpes) recurs in the same small area repeatedly rather than as a wide band, and doesn’t carry the same nerve pain. Shingles’ one-sided, band-like distribution combined with nerve pain is what sets it apart, and it’s usually distinct enough for a dermatologist to recognize it.
Diagnosis
In most cases, I can diagnose shingles based on a physical exam alone. The pattern of the rash, its distribution along a nerve pathway, and the type of pain involved are usually distinctive enough to confirm the diagnosis without additional testing.
When the presentation is unclear, for example if the rash is unusually mild or in an atypical location, I may use a PCR test or viral culture from a skin sample to confirm the virus is present.
Treatment for Shingles
Treatment centers on antiviral medication, and starting it early is the single most important factor in how well it works.
- Antiviral medications. Valacyclovir, famciclovir, and acyclovir are the most commonly prescribed options. Starting antivirals within 72 hours of the rash appearing shortens the duration of the outbreak and lowers the risk of complications, including postherpetic neuralgia.
- Pain management. Depending on severity, this can range from over the counter pain relievers to prescription options for more intense nerve pain.
- Topical care. Cool compresses, calamine lotion, and keeping the rash clean and covered can ease discomfort and help prevent secondary bacterial infection while blisters heal.
I customize the treatment plan based on when the rash started, its location, and each patient’s overall health, since factors like age and immune status affect both risk and recovery time.
Possible Complications
Most cases of shingles resolve within three to five weeks, but complications can develop, particularly if treatment is delayed.
- Postherpetic neuralgia. Nerve pain that continues after the rash has healed, sometimes for months or longer. This is the most common complication, and it’s more likely in patients who start treatment late.
- Eye involvement. Shingles affecting the area around the eye or forehead requires prompt evaluation, since it can affect vision if untreated.
- Increased risk in immunocompromised patients. Those with weakened immune systems, whether from a medical condition or medication, are more likely to experience a severe or prolonged outbreak.
If you notice a painful rash near your eye, or if pain and blistering are severe, don’t wait. Prompt evaluation is important.
Can Shingles Be Prevented?
The shingles vaccine (Shingrix) is recommended for eligible adults, generally those 50 and older, and significantly reduces the risk of developing shingles as well as the risk of postherpetic neuralgia if a breakthrough case occurs. I’m happy to discuss whether vaccination is appropriate for you during a visit.
Frequently Asked Questions
Is shingles contagious?
Shingles itself can’t be passed from person to person, but the virus can spread to someone who has never had chickenpox or the chickenpox vaccine, causing chickenpox in that person rather than shingles. This happens through direct contact with fluid from the blisters, so keeping the rash covered until it scabs over reduces this risk.
How long does shingles last?
Most cases resolve within three to five weeks. The blisters typically scab over within seven to ten days, though pain and sensitivity can last longer, especially without early treatment.
Can you get shingles more than once?
Yes. While one episode is most common, it’s possible to have shingles multiple times, particularly in people with weakened immune systems.
Is shingles a medical emergency?
Not usually, but shingles near the eye or a severe outbreak in someone with a weakened immune system should be evaluated promptly rather than waiting for a routine appointment.
Does insurance cover shingles treatment?
Most insurance plans cover the diagnosis and treatment of shingles, since it’s a medical condition rather than a cosmetic one. I recommend checking with your specific plan for details on your coverage.
How is shingles different from herpes?
Both are caused by viruses in the herpes family, but they’re different viruses. Shingles comes from the varicella zoster virus, the same one that causes chickenpox, and requires a prior chickenpox infection. Herpes simplex is a separate virus that causes cold sores or genital herpes.
What does the shingles rash look like at each stage?
It starts as red patches, progresses to fluid filled blisters within a day or two, and then those blisters cloud over and begin to scab within seven to ten days. The scabs fall off gradually.
Can stress trigger shingles?
Stress is one of several known triggers, since it can weaken the immune system’s ability to keep the dormant virus in check. Illness, certain medications, and aging are other common triggers.
If you think you have shingles, don’t wait. Call my office at or book online to schedule an evaluation, early treatment makes the biggest difference.




