I use it after a shower while my face is still wet and it sucks out all the blackheads on my nose. I don’t think you’re really supposed to use it on pimples, but I have and it sucks out all the junk and leaves a little bleeding but I have noticed that my blemishes clear up faster after sucking out all the junk from them. Also, I have noticed that after using it a few times, my pores are smaller. Cool invention! It’s not very loud and it doesn’t really irritate my skin. It leaves my skin a little bit red for maybe 20 minutes. I use it at night so by morning, I have smaller pores and cleaner looking skin.