Do dogs spread germs when they lick us? No! Doggie saliva is actually antiseptic. This is why they lick their cuts and scratches, and it’s the best therapy for them. If you have a scratch on your own skin and they lick it, it heals faster too. This doesn’t mean we have to kiss them on the mouths, of course. That’s a human custom. When dogs lick our cheeks and lips they’re responding to the appeal of a salty taste. You can move them to focus instead on your chin, your neck, or better still your fingertips, and they won’t feel insulted. But isn’t it nice to know, in a world filled with germs, that the risk of a dog “kissing” you on the lips is actually safer than most humans!