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Is isotonic or hypertonic saline better for nasal lavage?

Background Saline nasal lavage is one of the treatments of sinonasal diseases. Evidence from basic research favors hypertonic saline (HS) over isotonic saline (IS) for mucociliary clearance, but evidence from clinical studies is controversial. Conversely, HS may carry greater side effects.

Should you use a hypertonic nasal rinse?

If you’re experiencing congestion or a runny nose, a hypertonic solution may be helpful for you. Some physicians recommend hypertonic nasal rinse solutions because of the higher concentration of salt that may draw fluid and mucus out more effectively, but many patients experience a burning sensation when they use hypertonic solutions.

What is a isotonic saline rinse?

Overall, isotonic saline rinses make for an excellent way to wash away allergens while replenishing much-needed moisture to mucous membranes. It is important to keep in mind that the difference between an isotonic and hypertonic solution is relatively small.

What is the difference between ISO and hypertonic saline?

"Iso" means "equal", "hyper" means "high", and "hypo" means "low". With regard to saline, these prefixes refer to the salinity or amount of salt in the solution. Hypertonic saline has a higher concentration of salt. For congestion or a runny nose a hypertonic solution may be helpful.