ngl i dont rlly know what the average breast size is but I do know how to get ride of pimples! So they aren't gonna go away right away but the best thingy you can do right now is get on a schedule of washing your face every evening, day, or morning. I don't know if you want to know what I use but it definitely gets ride of most of my pimples. Also don't pick at them because it can leave scars and you can use a pimple patch!