First, you’re not alone. Up to 80% of American adults have the herpes simplex virus (HSV-1), which can cause cold sores (also known as fever blisters), according to Johns Hopkins. The viral infection ...

Most of the time it stays quiet, but when the immune system is strained, it can resurface on the lips as a painful outbreak.

Not again. No. 5-ranked and former UFC Strawweight title challenger Amanda Lemos was scheduled to face rising contender ...

When we say "cold sore," you probably know what we're talking about: the annoying red bump on your lip that itches and burns. Cold sores are pesky, and uncomfortable, and can make you feel ...

A mysterious bump near your lips can be unsettling. Is it a harmless pimple or something more serious like a cold sore? Distinguishing between the two is crucial for effective treatment and prevention ...

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. Were they ...

“Meanwhile, flu typically causes a sudden onset of fever, severe tiredness and weakness, muscle and joint aches, a headache, ...

Most colds clear up on their own, but some get worse. Here are the warning signs your cold is getting worse—and when to ...