green coverup and then apply your standard foundation to it.

well how about ur hair length?? can u cover up with that?? i would suggest some foundation..??

I've heard that putting toothpaste on it at night can make it go down, but I'm not sure if it works! But obviously, you need a quick solution so that won't do.
Next time, why not do it in a less noticeable place? Somewhere that normally gets covered up, like your chest or somewhere, if you want to go that far (I dunno if you've had sex or done anything sexual or not).

I once heard if you put a cold spoon against your skin where the hicky is, that it can help it go away. But when i get them i just put foundation on, and where my hair down.

A hickey is a bruise, so cold temperatures from ice or a cold spoon may help. You best bet is a tall shirt or hair.

well my hair is very long so i could cover it up if it was in a different spot, but it's in a weird place! its directly in the center of my neck directly under my chin! thank god its not that big! but my bf says its not notcieable but i swear it is! i tried toothpast and it didn't work! i tried foundation and it didn't work! i'll prolly try the cold spoon thing in a bit and hope it works!!
thanks everyone for your ideas!