The earliest record of nasal irrigation is found in the ancient Hindu practice of Indian Ayurveda whose roots are traced to the Vedas . It was customary to perform jala-neti daily, as part of soucha (personal hygiene according to scriptures). Jala-neti , which means to cleanse the nose with water, is an old yogic technique from India. The container used to administer the saline is called a "neti pot". This process removes mucus, dirt, and clears the nose. A second neti technique known as sutra neti uses a piece of string instead of water.