Medically reviewed by William Truswell, MD Different types of pimples can have various appearances, causes, and treatments.

Medically reviewed by Susan Bard, MDThere are a few reasons why it may take time to heal a big pimple. It's normal for some ...

An ingrown hair bump, or cyst, extends from your body’s surface and deep underneath it. It often looks like a red pimple with one hair on its surface, but other types can look different and ...