Herpes of the lips, commonly known as cold sores, is caused by the herpes simplex virus (typically HSV-1). It is usually transmitted through direct contact with an infected person's saliva or lesions, often during activities like kissing. Symptoms include painful blisters or sores on or around the lips, itching, and swelling. While there is no cure for herpes, antiviral medications can help reduce the frequency and severity of outbreaks, and topical treatments may alleviate discomfort.
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