This article was taken off a discussion in Arofanatics forum (Contributor: Ariesdram) when another fellow member asked what are the best preventive measures against unwanted "guests"....
Take a handful of sea salt plus a handful of glutinous rice(uncooked) and step with your left foot out and throw out the handful of rice while asking them to go (shout loudly if necessary but avoid saying "huat ah") and throw it at all corners.(dark corners or places damp and dark are especially bad)
take a bucket of water with sea salt mixed with pomelo leaves and use it to mop to the house house daily. Put a saucer of coarse salt at the toilets window. Keep them dry and replace where necessary.
At all areas of the house where it is dark, especially dark corridors, install bright lights and turn them on day and night for 7 nights. If windows are available at dark corners, open them during day time and let the house absorb more sunlight.
Grow two ports of pomegranate plants outside main door, do not use cactus.
Go to those fortune centre near middle road and buy 3 things:
1. A "shi gan dang" and put in front of your main door or in a place where it faces your main door. It blocks entry to certain things from going into your home.
2. A long wooden sword made of peach wood. If you are able to, get as many as you can with the long one facing the main door and smaller ones on the room doors facing out. These things are good!!! Even a wooden flute with red threads/fastenings will be good.
3. A coin sword made of coins of course interwoven with vermillion threads. Get this from places where they blessed the items.
I tried this on a few of my friends place. Now all is quiet, wife no bad dreams, kids don't wake up at night and they don't feel any presence lurking around.
Salt is the best cleanser if nothing else is available. If after this cleansing process the place still feel strange, there are more drastic measures.
