Of course, your Greyhound is a sighthound, but that doesn't mean they don't rely on their sense of smell. With one sniff your Greyhound gets a Google search full of info.
A healthy dog nose grabs the info carrying scent particles like flypaper, bringing your dog all the scoop. A dry, crusty nose doesn’t snag those good smells as well as a healthy nose, leaving your Greyhound annoyed, frustrated, and anxious.