A technique called saline irrigation can help people with chronic nasal and sinus conditions.
Researchers tested saline sprays (which squirt saline solution into the nostrils) against saline irrigation, a more rigorous nasal cleaning process. Patients using saline irrigation were much less stuffy and congested than those treated with saline spray.
Saline irrigation probably works by thinning mucus, decreasing swelling in the nasal passages and removing debris, bacteria, allergens and inflammatory substances from your nose.