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A cold sore [a] is a type of herpes infection caused by the herpes simplex virus that affects primarily the lip. [1] Symptoms typically include a burning pain followed by small blisters or sores. [1] The first attack may also be accompanied by fever, sore throat, and enlarged lymph nodes.
The spread is facilitated when a sore is present but it can happen in its absence as well. The patients may know that the virus is present on the skin when they experience the so-called "prodromal symptoms". These include itching or tingling on the skin, right before the blisters or lesions appear. The virus may spread since the first symptoms ...
Oral herpes involves the face or mouth. It may result in small blisters in groups, often called cold sores or fever blisters, or may just cause a sore throat. [2] [6] Genital herpes involves the genitalia. It may have minimal symptoms or form blisters that break open and result in small ulcers. [1] These typically heal over two to four weeks. [1]
What is the cold sore virus? Cold sores on the lips, face, and sometimes the genital area are caused by infection with HSV-1. By contrast, HSV-2 causes cold sores on the genitals.
The virus causing cold sores may also be linked to Alzheimer’s risk, a new study suggests. Image credit: alvaro gonzalez/Getty Images. This article originally appeared on Medical News Today
Herpes simplex virus 1 (cold sores) and 2 (genital herpes) (HSV-1 and HSV-2), also known by their taxonomic names Human alphaherpesvirus 1 and Human alphaherpesvirus 2, are two members of the human Herpesviridae family, a set of viruses that produce viral infections in the majority of humans. [1] [2] Both HSV-1 and HSV-2 are very common and ...
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