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 …

Jan 5, 2024 · Cold sores are sometimes called fever blisters. 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 …

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 your mouth. …

Cold sores are small blisters around the mouth caused by the herpes simplex virus. Cold sores can be spread by kissing or sharing eating utensils or even sharing towels.

Feb 11, 2025 · Cold sores (or “fever blisters”) are caused by the very common, very contagious HSV-1 virus. You can get it from kissing, sharing drinks or even using the same lip balm as someone who …

What is a cold sore? A cold sore is a small blister or group of blisters that usually develop on the lip or around the mouth. Cold sores are caused by the herpes simplex virus (HSV). Cold sores are also …

Cold sores are small, painful, fluid-filled blisters or sores that appear on the lips, mouth, or nose that are caused by a virus. The sores can be painful and usually last a few days.

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 coming back once …

Nov 2, 2025 · Cold sores start as small, painful, fluid-filled blisters on or near your lips. The herpes simplex virus (HSV) causes them and makes them contagious.

Dec 11, 2024 · Cold sores, also known as herpes labialis, orolabial herpes, or fever blisters, are contagious sores on the lips and mouth caused by the herpes simplex virus (HSV). Infections …