A nasal rinse is a common practice to clear nasal passages, especially during cold, flu, and allergy seasons. Here's who can ...

To treat allergic rhinitis, saline nasal sprays rinse allergens like dust and pollen from your nostrils. Nasal relief sprays, such as Afrin (oxymetazoline), temporarily relieve nasal congestion ...

The flu shot also won’t protect you against the COVID-19 virus. Saline nasal wash. There is no evidence that rinsing your nose with saline protects against infection with the Covid-19 virus.