"i have moderate to almost severe acnez i have been on doxycycline for almost 4 months now and my skin have improve drastically. at the first part of taking the medication, i started purging real bad that i dread leaving the house everytime. have some patience with this medication because it only took effect for me on the 3rd month. i&#039;m only left with all the acne scarring now, very occasional pimple popping out and breaking out when it&#039;s about to be the time of my month! this is my third time trying out this antibiotic as the first two times i never had determination to continue the entire phase. make sure your derm is lowering your dosage along the journey because i heard it helps a lot from avoiding horrible break out after stopping med."