Learn more about the new COVID-19 variants Nimbus and Stratus, and certain symptoms like a stabbing sore throat that come ...

A rare fungal infection thought to mainly occur in the northern Midwest and parts of the Southeast is more common in other parts of the U.S. than expected, new research published Wednesday finds. The ...

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 ...

So, you have a cold sore, otherwise known as oral herpes. These fluid-filled blisters often found on or around the mouth are not only painful, they may also inflict feelings of shame. “People hear ...

For such a ubiquitous plague, cold sores can be mighty shaming. In addition to the indignity of wearing a bulging, weepy blister on your lip, sufferers also must contend with the stigma of its source: ...

Cold sores are also known as oral herpes or fever blisters. They are very common among children and adults and are usually harmless. Cold sores on infants, meanwhile, are rare but can be dangerous.

So, what exactly are cold sores? According to Dr Kakai Kulabusia, a medical immunology specialist, these are small blister-like spots that appear in or around the outside of the mouth and are caused ...