acne
"I've been taking Yaz for almost 10 months now.  I wanted to go on it for a number of reasons including acne.  I started breaking out all the time in my last year of high school and it was horrible. I never wanted to leave my house.  
So I tried it and for the first couple of months I noticed my acne getting even worse! I guess it was just my body getting used to the hormones.  It took some time but starting at about 6 months, I saw a huge difference in my acne. I almost never get a pimple now!  And if I do it's around my period and they are much easier to make go away than before.  It definitely was a lifesaver, if you have acne I'd suggest it for sure."