Tossing this out to the universe.
How do you cure a Vampire?
I my games (mostly D&D, but also Unisystem ones) there is no cure per se other than the final one, death.
But a situation has come up in game and I would like to find a cure for a vampire. I'll give you some background specifics, but I want to find something that is more or less universal.
I have a vampire, and she has killed and taken blood. Lets also assume she has lived past her normal life span. So for a human she would be well over 100 years old by now, even if she still looks like she is in her 20s.
I would like it to be some sort of ritual. Something to renew her mind, body and soul. And preferably involving water somewhere (because of it's "purity") and sunlight.
Assume system-neutral. So high fantasy D&D, anime BESM or modern supernatural Unisystem; it should work regardless of magic levels in the game.