From left to right* Maybellene FitMe! in 110, Gosh primer, Mac mineralized loose foundation in Light.
Beginning with your clean, pretty, little face, apply your primer lightly - perhaps even moisturizer (all over since you're likely doing your entire face). Honestly primer is totally optional.
[before] Face wound, blemish, scratch, what have you.
Take your brush (or finger) and dab on liquid foundation, onto your troublesome spot. Do not rub. Make sure you blend well around the spot, but not on it remember just dab.
Notes;; Don't rub, do not. No no! Only do one layer of liquid foundation. One. Primer is optional, but it will keep your makeup in place way longer (no touching up a million times in a day).
With primer & liquid foundation.
Now take a brush (or finger) and dab on some powder foundation. Again, make sure around the spot is blended, we don't want spots or a cakey, heavy face.
You can do as many layers of powder foundation you deem necessary just try to only get it on top of that little area (the trickiest part of everything!!) Still no rubbing.
And there you have it. Before & After! (If you use a brush, don't forget to clean it) and as a note, I have never found a concealer that worked for me.