What does 2 Kings 5:27 mean?

'Because of what you've done, Naaman's skin disease will stick to you and your descendants forever.' Gehazi left Elisha's presence, and his skin was white with disease, like snow. 2 Kings 5:27 - Modern Text Bible

(Elisha pronounces judgment: Gehazi gets the very disease Naaman was healed from, as a consequence of his actions.)