You’ve seen it in Proactiv commercials with Jessica Simpson, she apparently had major breakouts that were easily covered by makeup nonetheless when she suffered from acne.  Of course, she actually used Accutane, but in commercials, she popularly promotes Proactiv.  But many women actually suffer from chin acne.  I personally suffered more forehead acne before I grew out my bangs.  But chin acne is likely because it is hormonal acne and women are often more susceptible to disruptions in the monthly cycle and balance of hormones in general.  Essentially speaking, oil gland production rises and therefore acne cases rise to some degree.  This can create puss, and hormonal acne reportedly occurs for the most part around the lower face, chin, mouth, and jaw line as a whole.  For most women, this happens around times of PMS.  However, for some women it can naturally be worse than it would be for others.  So it is important to know your body and know how it works in general terms to get the best possible benefits.  And for women, obviously see if you need to pay extra attention to the chin area, because apparently women tend to get more acne in that particular area than men would or than women in general do in other areas of the face.