Doxycycline
"I'm 37 and I suffer from pcos. I have been battening cystic acne since I was 25. I have spent thousands and thousands of dollars on meds, topical creams, different dermatologists and even laser treatments that have become costly. Doxy is a quick fix and as long as you're on it, it will work. However, coming off the meds you're skin will start to purge so be prepared. I've been mixing the right vitamins, cutting out dairy, eating GF, and keeping my diet rich in lots of green leafy veggies and high protein. I also have to exercise at least 3 times a week. Taking probiotics is also extremely important. Don't exfoliate too much and try to keep your cleansing regime simple. Hope this helps."