With the EoC update, disease was removed from the game. As such, Relicym's balm is no longer particularly useful for fighting zogres, *however* Uglug Nar still needs it to open up shop. The Crumble Undead spell has also been removed from the game. Instead, zogres and skogres are now quite vulnerable to Fire spells. As always, thank you for your hard work, tip.it staff! <3 Edit: Looking closer, part 11 of the guide also mentions Crumble Undead, so that should be modified, as well. Edit2: Yes, players are still expected to provide a cure for the (now purely narrative) "sickies".