Editing Nasal irrigation (section)

==Medical uses==
[[File:Nasendusche IMG 3357.jpg|thumb|To prepare an isotonic saline solution for nasal rinsing, approx. 0.25 liter lukewarm, sterilized drinking water and 2.5&nbsp;ml of table salt (about half a level [[teaspoon]]) is required.]]
[[File:Nasendusche.jpg|thumb|upright=0.6|Nasal irrigation device commonly available at pharmacies]]

Nasal irrigation can be an effective therapy to relieve symptoms of acute sinusitis caused by [[upper respiratory tract infections]] such as the [[common cold]].<ref name=Ros2015>{{cite journal |last1=Rosenfeld |first1=RM |last2=Piccirillo |first2=JF |last3=Chandrasekhar |first3=SS |last4=Brook |first4=I |last5=Ashok Kumar |first5=K |last6=Kramper |first6=M |last7=Orlandi |first7=RR |last8=Palmer |first8=JN |last9=Patel |first9=ZM |last10=Peters |first10=A |last11=Walsh |first11=SA |last12=Corrigan |first12=MD |title=Clinical practice guideline (update): adult sinusitis executive summary. |journal=Otolaryngology–Head and Neck Surgery |date=April 2015 |volume=152 |issue=4 |pages=598–609 |pmid=25833927 |doi=10.1177/0194599815574247|doi-access=free }}</ref> The evidence for effectiveness in relieving chronic sinusitis is weak.<ref name=Cochrane2016>{{cite journal |last1=Chong |first1=LY |last2=Head |first2=K |last3=Hopkins |first3=C |last4=Philpott |first4=C |last5=Glew |first5=S |last6=Scadding |first6=G |last7=Burton |first7=MJ |last8=Schilder |first8=AG |title=Saline irrigation for chronic rhinosinusitis. |journal=The Cochrane Database of Systematic Reviews |date=26 April 2016 |volume=4 |pages=CD011995 |doi=10.1002/14651858.CD011995.pub2 |pmid=27115216|url=http://discovery.ucl.ac.uk/1489911/1/Schilder_Chong_et_al-2016-The_Cochrane_library.pdf }} {{open access}}</ref>

It can also be useful for the temporary relief of the symptoms associated with [[allergic rhinitis]].<ref name=Hermelingmeier2012>{{cite journal |last=Hermelingmeier |first=Kristina E. |last2=Weber |first2=Rainer K. |last3=Hellmich |first3=Martin |last4=Heubach |first4=Christine P. |last5=Mösges |first5=Ralph |date=2012-09-01 |title=Nasal irrigation as an adjunctive treatment in allergic rhinitis: a systematic review and meta-analysis |journal=American Journal of Rhinology & Allergy |volume=26 |issue=5 |pages=e119–125 |doi=10.2500/ajra.2012.26.3787 |issn=1945-8932 |pmc=3904042 |pmid=23168142}}</ref>