Clean under your nose gently by dabbing a damp washcloth over it. Pat it dry with a soft, clean towel. Whatever you do, don't rub! You will only irritate the skin under your nose, and you don't want that.
Dab a thin layer of green concealer on the skin underside of your nose if redness is an issue. Corrective concealers come in several different shades; because it neutralizes ruddiness, "mint" green is the one you want to use after a crying spree or drippy nose. Make sense?
Opt for a concealer that is a shade lighter than your natural skin tone if you are dealing with hyper-pigmentation. The lighter shade of concealer will highlight the darkness and help add a healthy glow between your nose and upper lip. Go ahead; all you have to lose is a dark shadow under your nose!
Hide a scar under your nose with a concealer that is a shade darker than your natural skin tone. Why darker? Because as a scar heals it is usually not level with your skin. Dabbing a darker concealer over it will give the illusion of even skin tone. Got it?
Use the soft pads of your fingertips to gently blend the chosen concealer over your skin evenly. Top it off with a thin layer of foundation that matches your skin tone. Pat the foundation over the concealer using your fingertip; complete the look with a light dusting of face powder. Viola! Now you're even, chica!
Dab a little petroleum jelly under your nose before you go to bed at night. The petroleum jelly will coat your skin; it will also fend-off the redness and irritation that leads to uneven skin tone.
There's no need to pile on the concealer or the foundation and powder for that matter. A thin layer is enough to do the job. Too much will look heavy and cakey, drawing even more attention to your uneven skin tone.