When cleansing of nose is done with a rubber catheter (available at medical store), the process is called Rubber Neti. Catheter is a flexible rubber tube of varying thicknesses. Its closed end is put into the nasal passage of one nostril, then pushed in slowly till it reaches the mouth/upper part of the throat. Holding the end in the mouth with the help of our long two fingers, it is pulled out of the mouth. Then holding one end outside the nostril & other outside the mouth (as shown in the picture), it is rubbed in and out to liquidate any large septum or fold of skin. Finally after 8 to 10 rubs, it is pulled out of the mouth leaving the nostril end free. The entire mucous sticks to the rubber catheter, which is washed under running water and the process is repeated for the other nostril. This leaves our nose mucous free, removes any septum/fold of skin and enables us to breathe clean air comfortably and freely.