"i&#039;ve been on doxycycline for 2 months now and i haven&#039;t seen improvement. my acne around my mouth and chin have gotten worse. mind you, my forehead is pretty clear. my acne has left dark spots that won&#039;t disappear. it&#039;s now painful cystic acne instead of small pimples. i am not impressed and hoped to switch medication once finished with this bottle."