Holy Water vs. werewolves
Holy water is a common symbol often used in novels and movies to ward off both vampires and werewolves. The truth however is that holy water is not effective on werewolves.
If you think about the fact that lycanthropy can actually be credited to an actual infection or virus, it becomes a little clearer on why holy water does not make a difference. The normal cold or flu that a human would get would not be affected especially by holy water specifically. It is the simple act of hydration itself that can make a marginal difference – but think about this….it’s any kind of water, not just holy water that works to help against a cold. It’s the hydration that is key.
If you use this line of reasoning with lycanthropy, you can see the similarities. Being a werewolf does not mean you are possessed by an evil spirit – or are in your core evil – which means that holy water would not work to ward off werewolves. I have however heard reports that if holy water is drunk, it does seem to give a slight delay to the transformation process (although it does by no means stop the process). This might be where the holy water- werewolf rumor started. However, very interestingly, if a werewolf were to drink regular water the same thing happens – a slight delay in the onset of transformation. These results lead to the same conclusion as with a normal cold of flu infection – it is not the fact that water has been blessed or is holy, it is just the simple act of hydration which helps with the symptoms of the werewolf infection.
I do however want to be very clear in this point: making a would-be werewolf drink water will not prevent the onset of transformation, nor will it ward off werewolves if you are a human. The best it might do is, if drunk regularly, give a slight delay (and when I say slight I mean, possibly 5 – 10 minutes) in the onset of the transformation process.