Maddie Aberman If you're prone to breakouts, you might consider yourself a pimple pro. You probably know how to identify whitehead bumps (pimples with a visible white tips), deeper blackheads (dark spots caused by oxidized gunk in your pores), and even cystic acne (inflamed red zits that never come to a head) in your sleep. You may even feel like you have a handle on dealing with them with a targeted at-home skincare routine .