Saline Nasal Spray, Extra Strength, Nasa Mist Hypertonic saline 2.7%. Buffered 2.7% solutions. Extra strength (as compared to isotonic solution). Drug free nasal decongestant. Cleanse, moisturize and soothe with our sterile, preservative free, pH balanced & buffered solution. Uses: Nasal allergies, dryness, post nasal drip, congestion, stuffiness from common cold and flu, irritation from occupation, dust, fumes, animal dander, grass, pollen, smoke and house dust. Neither addicting nor habit forming. Advantages & Disadvantage of Hypertonic or Extra Strength Saline: Some research shows that hypertonic (2.7%) or more concentrated solutions may help reduce sinus congestion better than isotonic (0.9%) solution. Some consider extra strength saline as a natural decongestant. Hypertonic of higher concentrated salt solution is formulated to draw the water out of congested tissue and reduce swelling to open the nasal passages and sinus openings to allow for better drainage. It is possible that one may experience temporary burning or stingin