A saline nasal spray is a mixture of sterile water and 0.9% sodium chloride (salt) that you can spray up your nostrils to flush out pollen, dust, and other allergens from your nasal passages (the ...

Hypertonic saline refers to any saline solution with a concentration of sodium chloride (NaCl) higher than physiologic (0.9%). Commonly used preparations include 2%, 3%, 5%, 7%, and 23% NaCl.

One of the main concerns with the use of hypertonic saline is its potential to cause central pontine myelinolysis due to a rapid increase in serum sodium levels. Conclusion. There is no evidence ...