Cursed for Eternity: Zohar Parashat Tazria

How can someone be cursed for eternity? Rabbi Yaron Reuven brings a Chiddush from the Zohar on parashat Tazria of the punishment of Gechazi, the wicked servant of Elisha the Prophet. Elisha HaNavi cursed Gechazi and his descendants with Tzaraat for eternity for causing Chilul HaShem (desecration of G-d's Name).