Pimple?

Okay.. I've tried googling it but didn't get much about it. I have this pimple like thing on the side of my breast. A couple days ago I popped it and mostly blood came out and a little bit of puss like stuff came out. But now it hurts and there is a liquid that is coming out of it. It is like blood but it's more clearish than normal blood. I go to see a new doctor this week. Is it something I should bring up to her?