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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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   How long do fever blisters last?

   • Usually, fever blisters aren’t serious and heal within 2 weeks. While rare, severe complications can occur in children and people with low immunity due to conditions such as HIV, eczema, and cancer. Last medically reviewed on July 25, 2022 Without treatment, fever blisters can last up to four weeks.

   Natural Fever Blister Remedies, Causes, and More - Healthline

   www.healthline.com/health/beauty-skin-care/fever-blister-remedies

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   How do you know if you have fever blisters?

   • Symptoms of fever blisters: Fluid-filled blisters on the outside of the mouth around the lips. Burning or tingling sensation at the site where the blisters will appear. And sometimes, fever, fatigue, or swelling of the lymph nodes, similar to other viral infections.

   Fever Blisters & Canker Sores | National Institute of Dental and

   www.nidcr.nih.gov/health-info/fever-blisters-canker-sores

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

   www.mayoclinic.org › diseases-conditions › cold-sore

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   Jan 5, 2024 · Cold sores, or fever blisters, are a common viral infection caused by herpes simplex virus. Learn about the symptoms, diagnosis, treatment and prevention of cold sores from Mayo Clinic.

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

   health.clevelandclinic.org › what-triggers-cold-sores

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   Cold sores, also known as fever blisters, are caused by a herpes virus that stays in your body forever. Learn what triggers cold sores, how to prevent them and how to heal them fast with antiviral creams and medications.

4. 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 (fever blisters) are small, blister-like lesions that result from infection with a herpes simplex virus. They can form on the lips, mouth, chin, or genitals. Learn about the symptoms, stages, diagnosis, treatment, and prevention of cold sores from this article by Medical News Today.

5. www.healthline.com › fever-blister-remediesNatural Fever Blister Remedies, Causes, and More - Healthline

   www.healthline.com › fever-blister-remedies

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   Apr 12, 2023 · Learn how to treat and prevent fever blisters, also known as cold sores, with natural home remedies and prescription medications. Find out what causes fever blisters, how to use essential oils, and when to see a doctor.

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

   www.webmd.com › understanding-cold-sores-basics

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   May 10, 2023 · Cold sores, or fever blisters, are small blisters on the lips and mouth caused by the herpes simplex virus. Learn how to recognize, treat, and prevent them, and when to see a doctor.

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

   my.clevelandclinic.org › health › diseases

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   Apr 27, 2023 · Cold sores are fluid-filled blisters that usually appear on your lip or around your mouth. They are caused by the herpes simplex virus type 1 (HSV-1), which is very contagious and can also affect your genitals.

8. www.nidcr.nih.gov › health-info › fever-blistersFever Blisters & Canker Sores | National Institute of Dental ...

   www.nidcr.nih.gov › health-info › fever-blisters

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   Learn how to tell apart fever blisters and canker sores, their causes, symptoms, and treatments. Fever blisters are contagious fluid-filled sores on the lips, while canker sores are non-contagious white or yellow sores inside the mouth.