Stephanie Warkotsch popped what she thought was a hormonal pimple, but it grew back and "got bigger and bigger" across her cheek.

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

Cysts, or cystic acne, have a reputation for being particularly ... These are the types of pimples that are impossible to pop ...

NBC Select associate updates editor Zoe Malin says she started using Differin gel for her hormonal and cystic acne as a teenager since it is the only OTC retinoid that does not require a prescription.