"i was told i had roseace acne last year. my doc gave me cream after cream and nothing worked , she then gave doxycycline 100mg to take twice a day for 3 mts to see how the roseace acne started to clear up my face. my gp lower the dose after 6mth to one a day so i decided to carry on with it i didn&#039;t have any problems with them at all, i took them for 9 mths in total so i decided to stop i told my doc i needed a break. she did say the roseace will come back , well...what can i say it came back !!!. i went after 3 mts trying to delay it as long as possible i went back to the docs and she put  me back on doxycycline 1 a day, and in 2 weeks and it&#039;s working . all i have to say is that this tablets works different on each person. it works for me."