"before in 2015 i took doxycycline for 3 months and it barely did anything to my skin. i guess i could say it helped by 10% but that&#039;s it. my acne kept appearing and eventually i stopped because it wasn&#039;t working. so later in 2016 i was desperate so i started doxycycline again and now i&#039;ve almost been on it for a month and i can say that it hasn&#039;t helped my hormonal acne at all. but i don&#039;t have much medicine to resort to help with my persistent acne so i&#039;m hoping it gets a little better. my diet is very clean with no dairy and still i don&#039;t see an improvement with this medicine."