Cold sores are common, and they can sometimes appear under the nose. Learn about the symptoms, causes, treatment, and prevention of cold sores under the nose.

The cold sore-causing Herpes Simplex Virus (HSV-1) hijacks human cells and reconfigures its DNA within just an hour after infection, according to a new study that may help tackle the pathogen.

I get a cold sore almost every time I get stressed — it can be related to work or a relationship. I meditate daily and take good care of my health, which makes it even more frustrating.

Contrast therapy uses alternating hot and cold temperatures to reduce soreness and speed up recovery. Experts share how to do it at home safely.

Cold sores are small blisters that usually appear around the mouth. Find out how long they last, the stages of healing, and treatments that may help.

When the seventh season of Love Island USA premiered, an X user had a prophecy: “The entire Love Island franchise can be brought down by a single cold sore.” Dramatic? Yes. A joke? Probably ...

Cold sore-causing HSV-1 doesn't just hijack cells it reconfigures the entire architecture of our DNA to aid its invasion. Researchers discovered that it actively reshapes the 3D structure of ...

"Love Island" contestant Nic Vansteenberghe is being criticized for having a cold sore on the show. But he doesn't deserve the shame. Here's what to know.