Acne And Birth Control, VICHY?

okay well i have been on yasmin for about two months now and i dunno my acne is only on my cheeks and its like mild there are just like a patch on each side and like yasmin is suppose to help but like im doing it for 4 months too see how long it will take or if it works but im scared once i get off of it i will break out because some people broke out when they got off and some did GAH! and i just started vichy products yesterday! WISH ME LUCK and give me any reviews on vichy if you have tried any of ther products!