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  1. Cold sore - Symptoms and causes - Mayo Clinic

    Jan 5, 2024 · Learn more about the causes, symptoms, treatment and prevention of this common lip sore caused by the herpes simplex virus type 1 (HSV-1).

  2. Cold Sores: Causes, Symptoms, Treatment, Complications, and ... - WebMD

    Aug 11, 2025 · 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, and …

  3. How to Get Rid of a Cold Sore as Fast as Possible - Healthline

    May 13, 2025 · Cold sores, or fever blisters, tend to develop on the lip or around the mouth. They are usually caused by the herpes simplex virus type 1, also known as HSV-1. The virus …

  4. Cold Sore: Symptoms, Causes & Treatment - Cleveland Clinic

    What is a cold sore? A cold sore (also called a fever blister) is a skin blister associated with a herpes simplex virus (HSV) infection. Cold sores typically form on your lips or the skin around …

  5. Cold sore on lip: Pictures, treatments, and similar conditions

    Nov 16, 2023 · Cold sores can look similar to other skin issues, such as pimples, blisters, and canker sores.

  6. How to tell if it’s a cold sore or something else - HealthPartners

    Cold sores are often preceded by a tingling, itching or burning sensation on the area of your lip where they will appear. This is called the prodromal stage, and it can last anywhere from …

  7. Cold Sores - Johns Hopkins Medicine

    Small blisters on the lips and mouth that enlarge, burst, then crust over. Itching, dryness, and irritation of the lips and mouth. Soreness of the lips and mouth. How are cold sores …

  8. How to Treat Cold Sores on Lips Expert Advice & Care Tips

    Jul 10, 2025 · In this blog, we’ll explore how to treat cold sores on lips using safe, effective, and often natural remedies. You’ll also learn why they occur in the first place and what you can do …

  9. Cold sores: Diagnosis and treatment - American Academy of Dermatology

    Wearing lip balm year-round that has SPF 30 or higher and broad-spectrum protection may help prevent new cold sores. After your cold sore clears, throw away products like lip balm and …

  10. Overview: Cold sores - InformedHealth.org - NCBI Bookshelf

    Jan 14, 2025 · Cold sores are painful blisters on or around the lips. After a few days they scab over and heal. They are caused by an infection with herpes viruses. The blisters may keep …