@alacaelum
That just means she already had a cold but her immune system was fighting it of successfully. When she got hit with the water ball her immune system temporarily dropped and the cold gained a hold of her.
Thats why people *get sick* after being rained on or being exposed to sudden...
Oh so she's a reanimated corpse? Thats interesting, so she's already dead. Does that mean the whole eyes bring calamity thing already happened so she's good to go now?