I'm gonna have to agree with Caldone. Basic kiting skills are the bread and butter of being a hunter.
If you're dealing with a enchance shaman, just kite the guy until he falls dead. Keep your distance and you shouldn't have too much trouble fighting the guy.
Your spec might have something to do with it too. Between traps, concussive shot, and my pets intimidation I don't have too much problem with melee lately.