how to get rid of acne in week

What Causes Acne?

According to New York City dermatologist Shari Marchbein, M.D., all acne can be traced back to four main causes: Clogged pores thanks to "sticky" cells, bacteria, oil production, and hormones. All of these factors combine to cause a different type of acne, but some cause certain types more than others.

When trying to treat acne, Marchbein notes that it's just as important to keep the intensity of your acne in mind, not just the type. For anything above mild acne (meaning, occasional breakouts that aren't inflamed), you should make an appointment with a dermatologist sooner rather than later. "I never think it can be too early to go see a dermatologist," she says. "If you’re getting hyperpigmentation—darkening of the skin from the inflammation left from the acne—you want to seek care immediately." Another way to know it's time to make a trip to the derm? You've tried over-the-counter products, and they don't seem to be making a change. "Most acne treatments will clear your skin in three months, so if by two months you’re not seeing good results, you need to see your dermatologist," says Marchbein.

Ahead, we break down the most common types of acne you might be dealing with, as well as how to treat it at home, and when to see the derm.