Blackheads most commonly appear on and around the nose but can form anywhere on the face, back, chest, or arms, says Jeffy. They last longer than whiteheads, potentially months or years ...

Blackheads aren't contagious, but it's common to have a cluster in the same area, she says. That goes back to the fact that certain areas, like the nose, are more oily and likely to become clogged.

If you’ve ever dealt with blackheads, you know how frustratingly ... make your pores bigger), those suckers will still come back. Why? Because they’re not really a one-time blemish you can ...