Ask The Makeup Diva

If your rosacea isn’t severe, I would recommend using a
yellow based foundation as the yellow will cancel out the
redness and look much more natural. Bobbi Brown‘s foundation’s
are wonderful in covering redness as they are quite yellow
based. You have to be very careful in wearing a foundation with
a hint of green all over your face as this will not match your
skin. Also blending is very key when using any unnatural color
on your skin to try to cover an area up. However, MAC makes a
product called Tint which comes in a variety of colors, one of
which is a pale green tint to add to foundation or put on skin
under foundation. This may work very well for you. Another
option is using a green tinted concealer underneath your
foundation. A number of lines are offering these options
including Chanel. Good luck!