Jala Neti is a yogic technique to clean your sinuses. Neti is one of the six purification methods in Hatha Yoga. The sinus cavities can get clogged with impurities which may cause infections, inflammations and headaches.
Sheetkrama Kapalbhati is one of the variations of Kapalbhati or the skull shining breathing technique. It is mentioned in the yogic text Gheranda Samhita. In Sheetkrama Kapalbhati, water is sucked in through the mouth and expelled through the nose.It is an excellent way to remove mucous from the nasal cavity, throat and the pharynx.
Vastra Dhauti is one of the six purification techniques of Hatha Yoga called the Shatkarma. Vastra Dhauti is specifically aimed at cleaning the stomach and esophageal tract. In this practice a long strip of moist cotton cloth is swallowed into the stomach.