Go to the nearest beauty place where they do make up. Game chicks there whilst they test concealer on you. Well maybe not game them, but get a bit of chat going in your vulnerable state.
I went to this place recently asking this hot chick for tips on my cold sore and how to tone it down. She sat me down and did a whole bunch a stuff. I bought some concealer. Yes. I bought make up. Fvck it. At the end of the day, it's unnoticeable makes you look better and serves it's purpose, done.
Crack on.