A client asks, Why do I keep getting these cold sores on my lips? Am I kissing people too much? The ...

Ans: A
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Herpes simplex virus type 1 infection (i.e., cold sores) often develops during periods of inadequate rest, fever, ultraviolet radiation exposure, and emotional upset. The resident herpes virus is kept in check by body defenses, probably T lymphocytes, until a stressful event occurs that causes suppression of the immune system. You do not catch cold sores by not washing after the restroom. The other responses about going out with a wet head or staying away from crowds have no bearing to the development of cold sores.