How long does it take for birth control to take effect on acne prone skin?

I just started on Tricyclen lo about 2 weeks ago and I am very self consious of my face I was just wondering how long it would take for it to clear up?|||well honestly it might not even have an affect on your skin. i%26#039;m on the pill now and i was looking forward to the skin-clearing effects, but nothing changed. try accutane...it worked for me|||My friends went on the birth control pill Estelle for their pimples. They said that it is supposed to improve by around 10% each month. But don%26#039;t quote me on that =)