Use a firm brush to apply concealer and foundation to a pimple or scar. You will want to use a concealer or foundation slightly darker then your skin tone on the top of the pimple or scar. Then you will want to use a concealer and foundation which is slightly lighter then your skin tone on the bottom of the pimple or scar.
Shine tends to be accentuated on a raised surface, using this trick helps to camouflage the area.

Use a small amount of concealer to fill each pit, (which is a scar left behind from a pimple) Since pits tend to go in,they need to be filled in to help even out your skin. Fill in with a dense concealer or foundation the same color as your skin tone.

Lastly dust your entire face with a translucent powder. Then apply the rest of your make-up, like your eyeshadow,lipstick, etc. Just never apply to much! Doing so may make you look older and your skin worse.