August 24, 2016
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Cold Sores (Nongenital Herpes Simplex Infections)

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Herpes simplex infections (nongenital cold sores) facts

  • Herpes simplex virus (HSV) can cause infections that affect the mouth, face, genitals, skin, buttocks, and the anal area. It is one of the most common chronic viral infections in humans. The prevalence of HSV-1 (oral herpes) infection is 67% of adults worldwide and is higher than the prevalence of HSV-2 (genital herpes).
  • Of the two herpes simplex viruses (HSV-1 and HSV-2), cold sores are most commonly caused by HSV-1.
  • The virus resides deep in the nerve roots and may reactivate at a later time, causing the same symptoms and signs in the same location.
  • Cold sores usually go away within one to two weeks, but they can be treated with antiviral medications to reduce pain and shorten healing time.

What are herpes simplex infections?

Herpes simplex virus (HSV) can cause infections that affect the mouth, face, genitals, skin, buttocks, and the anal area. This article will concentrate on nongenital herpes. Many people acquire the virus and have no symptoms or signs. For others, painful blisters appear near the area where the virus entered the body. Typically, the blisters heal completely but may reappear at some point in the future. In between attacks, the virus resides deep in the roots of the nerves of the involved area. When herpes simplex lesions appear in their most common location, around the mouth, chin, and upper lip, people often refer to them as "cold sores" or "fever blisters." Oral herpes may cause ulcers, blisters, or sores anywhere inside the mouth, including the gums and the tongue. It may also cause sores inside the nose and around the nostrils. Herpes may also affect the eye.

Pictures of Cold Sores on the Lips (Fever Blisters, HSV-1, or Herpes Simplex Infection Type 1)
Picture of cold sores on the lips (fever blisters, HSV 1, or herpes simplex infection type 1)
Medically Reviewed by a Doctor on 6/15/2016

Source: MedicineNet.com
http://www.medicinenet.com/herpes_simplex_infections_non-genital/article.htm

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