[Taqwus]

You can't heal afflictions from replacement parts without getting rid of the parts -- but the parts (hearts and eyes) are pretty much always cursed, so you can't get rid of them except by

* death
* transforming into something that doesn't even have misc slots
* possibly, casting Wish for a misc item and getting an item bounced out -- but haven't experimented to see what the order of precedence is (first slot? non-cursed items bounced first?)
* and if it's a unique part (The Green Eye, say), somebody else can pull it out via Wish, into their own misc slots