[Norfleet]

You can preserve him longer by having him go into a battle and cast one of the healing spells whose names I cannot recall: That'll restore some of his hitpoints and stall the countdown a bit. Alternatively, you can give him an item of regeneration, which will also restore his hitpoints, even outside of combat, IIRC, which should keep him alive indefinitely. In both cases, he'll continue to acquire more afflictions and become progressively more gimpy, however.