respiratory system AE nasal irrigation AE QY, JX, HY 鼻腔冲洗 10069202 This is an AE which is a personal hygiene practice in which the nasal cavity is washed to flush out mucus and debris from the nose and sinuses, in order to enhance nasal breathing or can also refer to the use of saline nasal spray or nebulizers to moisten the mucous membranes. http://en.volupedia.org/wiki/Nasal_irrigation