Learn how ulcerative colitis affects your chances of getting the common cold or flu, and what you can do to treat or prevent ...

Azelastine nasal spray is associated with a reduced risk for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.

Hi, it’s Karoline in Singapore. Many people may think Covid-19 isn’t much of a threat, but for cancer patients, the risk from ...

The US Food and Drug Administration (FDA) has approved the first intranasal diuretic for heart, liver and kidney disease ...

An over-the-counter nasal spray for allergies could actually protect you from catching COVID, a recent randomized trial found ...