"i&#039;ve had acne for nearly three years. i tried everything clearsil, proactive everything, nothing worked. i finally went to the doctors and he put me on 50mg of doxycycline a day for 6 months. i&#039;m 2 months in and have seen some very up and down results. within the first week my skin had gone completely smooth, i still had acne but nothing was raised, within two weeks no new acne seemed to be appearing and by third week 70% of my scarring had disappeared. one month in my acne came back with a vengeance along the side of my face and all down my neck. now at the two month mark, my acne is about 80% gone and could not be happier. word of advice be patient and expect it to get worse before it gets better. i suffered really bad nausea also."