Less common white bump causes worth noting are: Flat warts: “These small, skin-colored bumps are caused by specific strains ...

Learn the difference between cold sores and pimples. Discover how to identify, treat, and prevent these common skin ...

You could actually have a cold sore (yep, they can pop up basically anywhere, not just your lips!), which can look like a pimple, says Dr. Goldenberg. While they're tricky to tell apart ...

If you spot a red blemish around your mouth, it may be difficult to tell whether it's a pimple or a cold sore at first glance. The two conditions share some similarities but also have unique symptoms.