Burmese folk religion
These exorcists, or "ahletan hsaya", are said to possess powers that can fend away or challenge these evil demons. These exorcists were often seen as very holy, because they had to be to combat troublesome spirits. They attempt exorcisms by giving the nat offerings. As an interesting overlap with Buddhism, exorcisms can be performed by holding the Buddha up to the possessed person, in an effort to have the Nat flee. If the exorcist cannot banish this spirit alone, they often ask for the assistance of the nat-kadaw. Sorcerers, or "weikzas" also harnessed the power of these nats through many complex rituals, to gain their own supernatural powers.
The Exorcist
In "Angel: Earthly Possessions", a spin-off comic story based on the TV series "Angel", protagonist Angel finds himself dealing with a priest who performs exorcisms, but comes to realize that the priest is summoning the demons for him to exorcise in the first place. He also makes a note of "The Exorcist" film, noting that the vision it created of possession actually made things easier for possession demons by making it harder for humans to know what to expect from a possession.