User blog comment:Lord Loss/Monster Appreciation Day: Khezu/@comment-4047931-20111105103015/@comment-5581583-20120318145917

Just as most said, Conga armor. Bowing from a ledge isn't a bad idea when he's not in rage mode. If he is, well, good luck, cause he'll jump up on the ledge with you.

A long sword is awesome for Khezu, however. Attack his legs so he will fall over. High sharpness, and fire if you want are good on your long sword, but I beat him with Conga Destroyer+

Good luck!