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 ...

Cold sores occur around the mouth area and resemble blisters or a cluster of blisters. Carlos Ciudad Photography/Getty Images Cold sores are caused by the herpes simplex virus (HSV-1), which is very ...

Waking up with a spot on your lip is never a good feeling. Often cold sores or pimples are to blame, though telling the difference isn't always easy. They can look similar on the surface, but their ...

Blisters on the lip can be due to cold sores, sunburn blisters, canker sores, and more. Treatment can depend on the underlying cause. There are many reasons why lip blisters develop, including ...

Which cold sore treatment is best? Whether you call them cold sores or fever blisters, they’re all the same. These painful, itchy bumps that form on the lips and around the mouth make life difficult ...

Medical research help explain why herpes return, and how to manage it effectively.

A canker sore, or aphthous ulcer, is a lesion that develops on the soft tissues that line the inside of the mouth, gums, and inner lips. The exact cause of canker sores is unclear. Some risk factors ...

Did you know that a person with a cold sore could be contagious for 15 days? Cold sores are a group of tiny, painful blisters caused by the herpes simplex virus (HSV1, HSV2). They’re also called fever ...

Can Ulcerative Colitis Cause Mouth Sores? Ulcerative colitis (UC) is a type of inflammatory bowel disease (IBD). UC is a chronic (lasting and persistent) condition that mainly affects the colon, part ...