"Nasal sprays don't constitute an antiviral therapy, despite what some of them imply," says Kaiser. "They contain no antiviral agent, but act as a kind of protective shield against bacteria and ...

Di Studio via Shutterstock The best treatment for a hard knock on the head might someday involve a quick sniff of a nasal spray ... shows that the experimental antiviral obeldesivir prevented ...

A recent study has found an over-the-counter nasal spray may interfere with respiratory virus diagnostic swabs. Northern ...