Home > Allergy > Sinus Rinse Get the Flash Player to see this player. Rate: (Click the stars to rate) Published on Dec 17, 2009 by NationalJewishHealth, Views: 5300 Sinus Rinse: The benefits of sinus rinse are to clean irritants and allergens, decrease inflammation, and make medications more effective. Sinus rinse can improve the symptoms of allergic rhinitis such as watery eyes, runny nose, congestion, post nasal drip and headache.