gel and a brush in the opposite direction, or buzz cut your hair, so it will be less noticeable.
um ok well you can't rly get rid of it but you can help it look less noticable. I had a rly bad cowlick in my bangs when I was little. I still have bangs now. I just use a little gel and dry it and it looks fine. some of it I sorta grew out of though. its not nearly as bad as it used to be. so my advice is use some gel. hope I helped!
I have one that separates my hair at the front and a little to the right. All I do is whip all the hair on the left over and I have it covered up. I kept it like this for a while and it stayed naturally.
I've got four... Trust me the only thing to do is work with it. I grew my hair out long enough that it looks good but the cow licks are virually unnoticable. When I had short hair it would stick up like a rooster =P