Herpes Simplex Infections (Non-Genital) (cont.)
MaryAnn Tran, MD
Melissa Conrad Stöppler, MD
Melissa Conrad Stöppler, MD
Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.
In this Article
What makes herpes (cold sores) recur?
After infection, the virus enters the nerve cells and travels up the nerve until it comes to a place called a ganglion. There, it resides quietly in a stage that is referred to as "dormant" or "latent." At times, the virus can become active and start replicating again and travel down the nerve to the skin, causing sores and blisters. The exact mechanism behind this is not clear, but it is known that some conditions seem to be associated with recurrences, including
How do cold sores spread?
Infections caused by HSV are contagious. The virus is spread from person to person by kissing, by close contact with herpetic lesions, or even from contact with apparently normal skin that is shedding the virus. Infected saliva is a common means of virus transmission. The contagious period is highest when people have active blister-like sores. Once the blisters have dried and crusted over (within a few days), the risk of contagion is significantly lessened. However, a person infected with HSV can pass it on to another person regardless of the presence or absence of symptoms and visible sores or blisters. This is because the virus is sometimes shed in saliva even when sores are not present. HSV can also be spread through personal items that are contaminated with the virus, such as lipstick, utensils, and razors. Despite popular myth, it is almost impossible to catch herpes (cold sores) from surfaces, towels, or washcloths.
Medically Reviewed by a Doctor on 2/18/2015
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