"before yaz, i was on levlen (for three months). during that time, i developed cysts on my ovaries, extremely heavy periods and awful cystic acne on my chin. i also gained some weight. my doctor suggested yaz, however i wanted to do some of my own research into this medicine. the internet provided horrific reviews of this drug. i became so scared of yaz before i&#039;d even tried it! eventually my doctor convinced me to give it a go (with some free sample sheets- it&#039;s not cheap!) and my goodness, it is the best thing i&#039;ve ever done. i&#039;ve been on yaz for six months now and i can honestly say the positives greatly outweigh any negatives. my periods regulated, the cysts disappeared (shrank) and my acne cleared (in 3/4 months; it was very bad)."