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 ...

How Are Cold Sores Diagnosed? To see if you have the herpes simplex virus (HSV), which causes cold sores, your doctor may simply examine the cold sore or may take a culture from it. The doctor may ...

What is the difference between a canker sore and a cold sore? Canker sores and cold sores are common but distinct oral ...

This finding shakes up the traditional view of how the virus escapes its dormant state. The discovery could lead to better ...

Cold sores are painful blisters on the lips that can form unsightly crusts. They are very common and are caused by the herpes simplex virus. The medical name for facial cold sores is herpes labialis.

The first vaccine to protect against the herpes virus that causes cold sores could soon be on the market. Doctors who have spent 15 years developing the new vaccine, and who will use it on around ...

While cold sores can affect people of all ages, similar to acne, they're most typically associated with teenagers and young ...

Cold sores occur on the outside of the mouth and are caused by the herpes simplex virus. Canker sores are blisters inside the mouth that can occur due to injury, nutritional deficiencies ...

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Researchers have developed a new treatment formula—known as GS-1—that could reduce the symptoms and contagiousness of the ...