Type 1 more common: Cold sores on or near the lips are due to recurrence of herpes type 1 or 2. Herpes viruses, after the initial infection, live in a person's nerves and travel down the nerves to the surface to form blisters that break open, spreading more virus. Type 1 is more common on the lips, and type 2 more common on the genitals. With people engaging in oral sex, either type can be in one or both locations.
Answered 10/25/2017
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Hsv-1. Usually: Fever blisters are usually caused by hsv-1, but they can be caused by hsv-2.
Answered 1/23/2019
5.6k views
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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