http://www.physiciansformula.com/en-us/productdetail/face/concealers/02740.html
i have used that before and got it at target and i think it covered pretty dang well.

a also like a concealer that is the same physicans formula brand that is green colored.
it sounds weird but the green kinda cancels out the redness of a blimish and if you blend it in well with your other make up it looks fantastic!
hope this helped.
