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1. Dictionary

   cold sore

   /ˈkəʊld ˌsɔː/

   noun

   • 1. an inflamed blister in or near the mouth, caused by infection with the herpes simplex virus.

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2. People also ask

   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. Up to 90% of people around the world have at least one form of HSV. The symptoms are usually the most serious the first you time you get cold sores.

   Cold Sores: Causes, Symptoms, Treatment, Complications, and ... - Web…

   www.webmd.com/skin-problems-and-treatments/understanding-cold-sores-basics

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   What causes cold sores?

   • Cold sores are caused by the herpes simplex virus. There are two types of the herpes simplex virus. The herpes simplex type 1 virus (HSV-1) usually causes cold sores, and the herpes simplex type 2 virus (HSV-2) usually causes genital herpes. The actual sores are similar in appearance for both forms of the virus.

   Cold Sores: Symptoms, Causes, Treatment, and More

   www.healthline.com/health/herpes-labialis

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   When do cold sores come out?

   • You may get cold sores as late as 20 days after you’re infected. The sore might appear near where the virus entered your body. Cold sores happen in stages: You have a tingling, burning, or itching feeling. About 12-24 hours later, blisters form. The area becomes red, swollen, and painful. The blisters break open and fluid comes out.

   Cold Sores: Causes, Symptoms, Treatment, Complications, and ... - Web…

   www.webmd.com/skin-problems-and-treatments/understanding-cold-sores-basics

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3. 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. They are tiny, fluid-filled blisters on and around the lips. These blisters are often grouped together in patches.

4. 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 are painful blisters caused by an infection with the herpes simplex virus (HSV). Learn more about the causes, risk factors, symptoms, treatment, complications,...

5. 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.

6. en.wikipedia.org › wiki › Cold_soreCold sore - Wikipedia

   en.wikipedia.org › wiki › Cold_sore

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   A cold sore (also known as a fever blister, oral herpes, and herpes labialis) is a type of herpes infection caused by the herpes simplex virus that affects primarily the lip. Symptoms typically include a burning pain followed by small blisters or sores. The first attack may also be accompanied by fever, sore throat, and enlarged lymph nodes.

7. www.healthlinkbc.ca › health-topics › cold-soresCold Sores | HealthLink BC

   www.healthlinkbc.ca › health-topics › cold-sores

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   Cold sores, sometimes called fever blisters, are groups of small blisters on the lip and around the mouth. The skin around the blisters is often red, swollen, and sore. They usually heal in 7 to 10 days. Cold sores are most contagious until the blisters are completely healed.

8. www.healthline.com › health › herpes-labialisCold Sores: Symptoms, Causes, Treatment, and More - Healthline

   www.healthline.com › health › herpes-labialis

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   Jul 18, 2012 · Cold sores are red, fluid-filled blisters that usually form near your mouth or other areas of your face. There's no cure for cold sores and they may appear anytime...

9. www.healthline.com › cold-sore-stagesCold Sore Stages: Identification and Treatment - Healthline

   www.healthline.com › cold-sore-stages

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   Mar 27, 2023 · There are five different stages of a cold sore. The first stage starts about 24 hours before the blister appears. The blister appears in stage 2, bursts and oozes in stage 3, dries out and...