Herpes zoster (Shingles) - Herpes zoster

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Shingles is a blistering (ampoules) and painful rash caused by the varicella-zoster virus.

The first time a person is infected, the herpes zoster virus causes chickenpox. It remains latent in certain nerves of the body. When the virus is reactivated in these nerves after a period of years, shingles or zoster occurs.

The most common associated symptoms are burning or itching which becomes painful and blisters rash that generally follow a linear pattern on the skin.

It is diagnosed by medical history and a full physical examination.

There is no treatment to cure infection with the varicella-zoster virus. The treatment goal is easing pain and reducing symptom days. There is an antiviral called acyclovir which prevents the virus from replicating, shortening the number of symptom days.

Bibliographic references
  1. Mary A Albrecht. Epidemiology and pathogenesis of varicella-zoster virus infection: Herpes zoster. UpToDate. Jul 21, 2016.
  2. Mary A Albrecht. Clinical manifestations of varicella-zoster virus infection: Herpes zoster. UpToDate. Aug 02, 2016.
  3. Mary A Albrecht. Treatment of herpes zoster in the immunocompetent host. UpToDate. Jul 21, 2016.
  4. Li Q, Chen N, Yang J, et al. Antiviral treatment for preventing postherpetic neuralgia. Cochrane Database Syst Rev 2009; :CD006866.
  5. Lopez AS, Burnett-Hartman A, Nambiar R, et al. Transmission of a newly characterized strain of varicella-zoster virus from a patient with herpes zoster in a long-term-care facility, West Virginia, 2004. J Infect Dis 2008; 197:646.
  6. Whitley RJ. Infecciones por el virus de la varicela-zoster. Harrison. Manual de Medicina. 16º edición. 556-562.
Author
Dr. Elvira Moreno
Copyright
© TeckelMedical 2026

Symptoms

    Rash made up of painful blisters


    Skin blisters which produce yellowish scabs


    Vesicles are itchy and/or burn


    Blisters larger than 0.5 cm / 0.2 inches


    Vesicles in chest and/or low back regions

Symptoms to watch out for

Pain or rash near the eyes
Generalized, painful rash
History of immunodeficiency (HIV, Diabetes Mellitus, oncological disorders, long-term corticosteroid consumption).
Loss of vision

Self-care

Use over-the-counter analgesics and antipyretics for muscle pain or fever (temperature > 100.4 F).
Antihistamines in syrup or tablet form for itching.
Apply cold compresses 3 times a day for 20 minutes to reduce the symptoms.
Reduce situations that cause psychological stress