After overcoming the disaster of teenage acne, women trap within periodic pimples. Periodic pimples are short term pimples, like before or during menstruations, during pregnancy etc. In this perticular article we will see how to deal with premenstrual and menstrual acne. Flare up of acne is very common during or previous to menstrual bleeding, like in any other harmon trigger. Generally the menstrual cycle is of 28-30 days. First half of this cycle is influenced by the harmon oestrogen and second half is by the harmon progesterone. It is said to be that, progesterone trigger causes skin swelling and pore tightening, which leads to build up of sebum beneath the skin layer. While testosterone harmon which reaches to the peak during menstruation causes excessive secretion of sebum through glands within skin. Actually this joint effect has different expression in different woman. It means increased sebum with tight pores can give a special glow in some ladies while in others it can g...