Nasal irrigation is rinsing nasal passages with large amount of saline solution (salt water). Several studies showed the effectiveness of this approach in relieving nasal congestion, rhinorrhea as well as sleep disturbance. The aim of nasal rinsing is to clear the nasal mucosa and rids possible allergens and irritants out, thus reducing the nasal blockage. Moreover, it has shown that sprays medications are more effective when patients did the nasal rinsing before using them. Different kinds of devices, including syringes, pots, bottle sprayers and saline.
