According to the principles of hygiene, the house is to be kept clean and tidy. The atmosphere must not be damp. In order to keep the house it must be occasionally fumigated with benzoin or some other like incense. The actual reason of sickness of all the family members should be found out and the cause be removed. But if there is no apparent reason for the sickness then write the following charm on a piece of paper and hang it in the house at such a place where it should remain moving in the air.