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Saline Nasal Sprays Cut Colds, Boost COVID Defense

1/8/2026

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Summary

Story summary

Recent studies show that saline nasal sprays reduce cold duration by 20% and significantly lower hospitalization rates for Covid-19.
Americans typically endure two to three colds annually, costing the economy about $40 billion.
Saline reportedly inhibits viral replication, boosts white blood cell activity, and enhances mucus function to trap viruses.
Doctors' renewed interest suggests saline nasal irrigation is a safe and effective method for combating seasonal infections.

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Story summary

Recent studies show that saline nasal sprays reduce cold duration by 20% and significantly lower hospitalization rates for Covid-19.
Americans typically endure two to three colds annually, costing the economy about $40 billion.
Saline reportedly inhibits viral replication, boosts white blood cell activity, and enhances mucus function to trap viruses.
Doctors' renewed interest suggests saline nasal irrigation is a safe and effective method for combating seasonal infections.