And while acne isn’t caused byeating too much chocolateor not washing your face enough (sorry, Mom!

Aclosed comedoneis acne within an unopened follicle, which typically looks like a flesh-colored lump.

The humidity that builds up under face coverings is a breeding ground for bacteria.

Woman looking at blemishes on her face

To keep comedonic acne from recurring, theAmerican Academy of Dermatologyhas a number of tips.

And if your acne doesn’t clear up or worsens after a few weeks, consult a dermatologist.

A close-up of a nose with blackheads (open comedones)

Woman applying cream to her face