"i have been on this medication for three months now and it is the worst decision i&#039;ve ever made in my life. i started with moderate cystic acne, my doctor said that doxycycline would work wonders for it, and, sadly, i believed him. although now i very rarely get cysts, i have broken out severely on my cheeks and forehead in ten to fifteen hard inflamed bumps at a time, and this medication has left immense scarring all along my cheeks that cannot be covered by makeup. my skin is a thousand times worse now than it was when i started. please don&#039;t start this medication. "