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   What are cold sores (fever blisters)?

   • Learn how to effectively treat and prevent the growth and development of cold sores (fever blisters), a viral infection commonly caused by person-to-person via intimate contact when a person carries the herpes simplex virus type 1 (HSV-1) or HSV type 2 (HSV-2).

   Cold Sores: Identification, Treatment, & Prevention - Verywell Health

   www.verywellhealth.com/cold-sores-identification-treatment-prevention-7486669

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   What causes fever blisters?

   • Fever blisters result from infection with a herpes simplex virus. Antiviral medications may help manage them. Cold sores usually cause pain, a burning sensation, or itching before they burst and crust over. People sometimes call them fever blisters. The most common cause of cold sores is the herpes simplex virus type 1 (HSV-1).

   Cold sores (fever blisters): Causes, symptoms, treatment, and more

   www.medicalnewstoday.com/articles/172389

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   What causes a cold sore after a herpes infection?

   • Once you've had a herpes infection, the virus can hide in nerve cells in the skin and may cause another cold sore at the same place as before. A return of cold sores may be triggered by: Viral infection or fever. Hormonal changes, such as those related to a menstrual period. Stress.

   Cold sore - Symptoms and causes - Mayo Clinic

   www.mayoclinic.org/diseases-conditions/cold-sore/symptoms-causes/syc-20371017

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2. www.mayoclinic.org › diseases-conditions › cold-soreCold sore - Symptoms and causes - Mayo Clinic

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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.

3. www.webmd.com › understanding-cold-sores-basicsCold Sores: Causes, Symptoms, Treatment, Complications, and ...

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   May 10, 2023 · What Is a Cold Sore? A cold sore is a group of tiny, painful blisters caused by the herpes simplex virus (HSV). They’re also called fever blisters or herpes simplex labialis.

4. my.clevelandclinic.org › health › diseasesCold Sore: Causes, Treatment & Prevention - Cleveland Clinic

   my.clevelandclinic.org › health › diseases

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   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.

5. health.clevelandclinic.org › what-triggers-cold-soresWhat Triggers Cold Sores? - Cleveland Clinic Health Essentials

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   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.

6. www.medicalnewstoday.com › articles › 172389Cold sores (fever blisters): Causes, symptoms, treatment, and ...

   www.medicalnewstoday.com › articles › 172389

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   Nov 9, 2023 · Cold sores usually cause pain, a burning sensation, or itching before they burst and crust over. People sometimes call them fever blisters. The most common cause of cold sores is the herpes ...

7. www.healthline.com › health › 6-causes-and-triggers6 Causes and Triggers of Cold Sores - Healthline

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   Nov 19, 2021 · Stress, illness, hormones, and more can trigger outbreaks. Cold sores are painful, open blisters that develop in or around your mouth, usually on your lips. After you get an HSV...

8. www.verywellhealth.com › cold-sores-identificationCold Sores: Identification, Treatment, & Prevention

   www.verywellhealth.com › cold-sores-identification

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   Sep 8, 2023 · Cold sores, also known as oral herpes, are a common condition caused by a viral infection. Cold sores appear as fluid-filled blisters around your mouth, often grouped in patches. After some time, these blisters break, forming scabs that can last for several days to weeks. While most cold sores heal after a few weeks, some can leave scars.