Difference between Curse and Illness?

[Hessah]

Actually, the ONLY damage over time that a mage can actually dispel is the one from Skeleton Knight.

Clerics will find that they cant "cure" the illness casted by the Skeleton Knight in LS2 (you'll encounter him at level 30), but a mage can actually stop that by dispelling. That's the ONLY time a mage could cure an illness (or bleeding, watever you want to call it).

I have a feeling that it's a bug, but.. that's how it works atm.

But normally, all bleeding / illness are cured by clerics, curse are dispel by mage.