Hi there -- Bare Minerals caused a flare up of my eczema and acne (lovely, I have both, as well as rosacea). I switched to a mineral makeup that does not contain bismuth oxychloride -- Bare Minerals does -- which can be very irritating to sensitive skin. I see that Bobbi Brown's mineral makeup does not have bismuth oxychloride, but it does have a dimethicone in it, which also can be irritating. Bobbi Brown also has lots of other chemical ingredients. Maybe try a mineral makeup with fewer/purer ingredients? I am currently using Meow Cosmetics mineral makeup (
http://www.meowcosmetics.com/) and am happy with it. Miraculously, it does not irritate my highly reactive, sensitive skin. In the past I also tried Larenim minerals, which you can get at some Whole Foods, with some success.