Swastik is being used in some form or the other. In India, the basic purpose of all religious rituals, healing procedures and yog practices is to balance, and to help align oneself to this cosmic equation. Swastik is a lucky or an auspicious object to remove the evil eye effects of Houses etc.
With the Swastika, you can ignite the spark that fuels the process which brings a natural balance into being. It should be placed on the wall.