Repelling a Vampire: Vampires cannot tolerate the strong odor of garlic and will not enter an area laced with it. Similarly, they recoil from a mirror or a strongly presented holy symbol. These things don’t harm the vampire—they merely keep it at bay. A recoiling vampire must stay at least 5 feet away from a creature holding the mirror or holy symbol and cannot touch or make melee attacks against the creature holding the item for the rest of the encounter. Holding a vampire at bay takes a standard action.
Vampires are also unable to cross running water, although they can be carried over it while resting in their coffins or aboard a ship.
They are utterly unable to enter a home or other building unless invited in by someone with the authority to do so. They may freely enter public places, since these are by definition open to all.
Slaying a Vampire: Reducing a vampire’s hit points to 0 or lower incapacitates it but doesn’t always destroy it (see the note on fast healing). However, certain attacks can slay vampires.
Exposing any vampire to direct sunlight disorients it: It can take only a single move action or attack action and is destroyed utterly in the next round if it cannot escape. Similarly, immersing a vampire in running water robs it of one-third of its hit points each round until it is destroyed at the end of the third round of immersion.
Driving a wooden stake through a vampire’s heart instantly slays the monster. However, it returns to life if the stake is removed, unless the body is destroyed. A popular tactic is to cut off the creature’s head and fill its mouth with holy wafers (or their equivalent).