The FDA has approved a nasal spray flu vaccine for home use. Here's how it works, and when it will be available.

A no-frills nasal spray could potentially provide effective protection against "deadly respiratory infections" and Covid-19, tests on mice suggest. In findings published in the journal Advanced Materials,

Researchers are exploring a new nasal spray designed to protect against respiratory illnesses like colds, flu, and COVID-19. The spray, developed by Brigham and Women's Hospital, uses a unique formulation called PCANS (Pathogen Capture and Neutralizing Spray).

Nasal Spray Beats Flu, Colds, Covid-19 With 99 Percent Success, Researchers Say. The spray functions by creating a gel-like matrix within the nasal passages. A nurse gives a s

Brigham researchers have developed a nasal spray called PCANS that blocks a wide range of respiratory infections by trapping and neutralizing pathogens in the nose. In lab and animal tests, the spray effectively prevented infection,