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 ...

Swelling causes a pimple to develop ... Pimples and cold sores can look similar. Cold sores cause painful blisters on the lip, while pimples typically occur on the skin around the lip.

This inflammation then causes swelling, which encourages a pimple ... While lip pimples develop on the skin around the lip, cold sores appear on the lips themselves and cause additional symptoms ...