Waking up with a spot on your lip is never a good feeling. Often cold sores or pimples are to blame, though telling the ...

"Both lip pimples and cold sores can pop up on the border of the lips, and a lip pimple can be mistaken for a cold sore," says Ko. However, cold sores, also known as oral herpes, are caused by the ...

Cold sores, most commonly caused by the herpes simplex virus type 1 (HSV-1), often pop up around the lips or mouth. Once infected, the virus can linger in your body, occasionally flaring up when ...