Salt water nasal spray
BMJ Group Medical Reference
Rinsing the nose with salt water has been a folk remedy for colds for many years, so some people think this should work for blocked sinuses. You can buy some salt water drops and sprays in pharmacies. There hasn’t been enough good research to say whether these work for sinusitis.
One review of all the evidence from three studies of 618 children and adults with sinusitis and other infections found most results did not show any difference between people who rinsed their nose with salt water and those who used other treatments. In adults there was some suggestion that people who used salt water got better and were back to work more quickly than those who didn't, but the improvement was not large enough to be sure it wasn't caused by chance. Four in every 10 babies were not able to use salt water sprays.
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