"most of my teenage life my skin was ok, not perfect but i knew i would grow out of it. about 8 - 12 months ago however, in my second year at university i began to get aggressive, rashy looking acne all of my cheeks and jaws - very unusual for me. when it started to mess with my self confidence i finally went to the doctor who prescibed me doxcycline 100 mg, 1 tab every day for 3 months. after about 3 days on this pill i experienced about 10 days of the worst acne i have ever had. i persevered though and in the past 2 days (i am now halfway into my 3rd week) i have seen a massive difference. &#039;m only left with a few little red marks which will disappear over time. do try this medication and don&#039;t lose hope if your acne gets worse for a while!"