Table 1.

Recommendations from Cochrane Reviews considering the usage of nasal saline irrigation for different sinonasal diseases and the quality of evidence.

Indication	Recommendation	Quality of evidence
Acute rhinosinusitis and common cold [6]	May be beneficial, no recommendation can be made	Low or very low
Allergic rhinitis [8]	May be beneficial, no recommendation can be made	Low or very low
Chronic sinusitis [7]	May be beneficial, no recommendation can be made	Low or very low
Atrophic rhinitis [10]	No recommendation can be made
Asthma	None exist
Post-operative care after functional endoscopic sinus surgery	None exist
Regular cleaning after functional endoscopic sinus surgery	None exist