From someone else? Rid them from your friends - hang out with someone else who isn't jealous.
Your's? Litterally, count your blessings! Someone else's jealousy? Just like anyone else with an attitude, SMOTHER THEM WITH KINDNESS UNTIL THEY PUKE HAPPINESS!! lol
Figure out why they are jealous. You'll probably have to dump them. Do you really want to deal with THEIR issue?
Go hide in a cave. Cave dwellers aren't normally the jealous type, or they wouldn't be living in a cave.
Kill the person that is causing you to be jealous, but be careful not to get caught.
Two ways to look at this, if you are the jealous person own it. Part of dealing with a problem is admitting you have one. Then explore why you feel that way, make sure you don't act out on it and try and see the other person's point of view. Jealous people, avoid, they act out and drag you down.
by not being jealous
Find somebody without your attributes and compare yourself to them as you being the superior one. *shrugs*
better yourself so you have nothing to be jealous of.
Journal your feelings and re-read them over and over until it hits home that it's unhealthy to feel that way. Want revenge? Live life like the person you hate is watching.
snog a stranger