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What causes fever blisters?
What are cold sores (fever blisters)?
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Jan 5, 2024 · Cold sores, or fever blisters, are a common viral infection. They are tiny, fluid-filled blisters on and around the lips. These blisters are often grouped together in patches. After the blisters break, a scab forms that can last several days. Cold sores usually heal in 2 to 3 weeks without leaving a scar.
Nov 9, 2023 · Policy. Internal medicine physician Rafael Fernandez Bohorquez, MD, explains what causes cold sores and what to do when you feel one coming on. Why do I get cold sores? Cold sores are the result of a herpes simplex virus (HSV) infection, the same virus that causes genital herpes.
Apr 27, 2023 · A cold sore is a fluid-filled blister (or a cluster of blisters) that usually appears on your lip or around your mouth. They can also affect your cheeks, nose and chin. The herpes simplex virus type 1 (HSV-1) causes most cold sores.
Nov 9, 2023 · Cold sores (fever blisters) are small, blister-like lesions that form on the lips, mouth, or genitals as a result of infection with a herpes simplex virus. Learn about the symptoms, stages, diagnosis, treatment, and prevention of cold sores, as well as the complications and outlook for people with oral herpes.
May 10, 2023 · Cold sores, or fever blisters, are caused by the herpes simplex virus (HSV) and can be triggered by stress, sun exposure, or other factors. Learn how to prevent, treat, and diagnose cold sores and their complications.
Sep 8, 2023 · Cold sores (fever blisters) can be a painful nuisance that often potentiates stress and embarrassment in daily life. And without treatment, cold sores can take up to 10 days to disappear. To make matters worse, there is no permanent cure for the herpes virus (the virus that causes cold sores).
What causes cold sores? A virus causes cold sores. Most cold sores are caused by the herpes simplex virus (HSV). More than half of Americans ages 14 to 49 carry this virus. Once you get the virus that causes cold sores, you have it for life. After the sores clear, the virus travels to your nerves, where it stays unless it reawakens.
