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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.
Plus, “it will heal faster, so there's a reason to treat properly anyway,” he says. You might also see the dietary supplement lysine touted as a remedy to help cold sores heal.
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]
Cold sores, on the other hand, are contagious — they’re caused by the herpes simplex virus — and tend to crop up outside the mouth, typically along the border of the lips.
In 2009, acyclovir in combination with hydrocortisone cream, marketed as Xerese, was approved in the United States for the early treatment of recurrent herpes labialis (cold sores) to reduce the likelihood of ulcerative cold sores and to shorten the lesion healing time in adults and children (six years of age and older). [61] [62]
Cold sores versus canker sores To make a true diagnosis of the cold sore virus, your doctor needs to take a culture from the area and send it to the lab for analysis, says Dr. Friedman.
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