Abscess If you notice a painful bump on the roof of your mouth, it could be an abscess—an infection that forms when bacteria ...

A pimple on your lip forms when a pore gets clogged with bacteria. The most common symptom of a pimple is a small, tender, raised bump on the skin. If the pimple is filled with pus, it’s called ...

The result is a small, tender, raised bump on the skin that's sometimes filled with pus. A pimple on your lip can be uncomfortable. A dermatologist (who specializes in skin, hair, and nails ...

Cold sores and pimples on the lips can look and feel similar, but they're different. Derms break down the differences and ...