"i have always had clear skin until i turned 30 and just one day i  started having severe acne all over my face. called up my derm and she recommended doxcycline. i am on my week 2 of this drug. not seeing any major changes yet. derm said that i need to take it 2x a day with food and apply topical cream (retin a) at night. i really really hope it clears up after 2 months of course."