Extreme Yang Spell
In traditional Chinese belief, what we call demons may actually be a manifestation of excessive yin energy. This can be neutralized by applying the opposing force: extremely potent yang energy. The following serve as demon/yin repellants:
Firecrackers
Mirrors
The crowing of a rooster
Swords
Reading sacred texts and philosophy books is also believed to send malevolent spirits on their merry way because these create order, in which demons(which crave chaos) cannot thrive.
Witches Of The Craft® 