There is no strong evidence that nasal saline rinses help with chronic sinusitis,[1] but they do seem to improve symptoms of allergic sinusitis.[2] Guidelines hold that even though there’s no strong evidence of benefit of nasal saline irrigation, there is also very little evidence of harm.[3]
Do saline rinses help with sinusitis?
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•Last Updated: May 16, 2025
Nasal saline rinses lack strong evidence for treating chronic sinusitis but may improve symptoms of allergic sinusitis. Guidelines suggest that although the benefits of saline irrigation are not well supported, there is also minimal evidence of harm.