Lick her nose. To check for dehydration, pinch your dog's skin and lift it as high as you can. The page cannot be found. Return visit? If you think your dog may have eaten something toxic, for example, if he is nauseous or eating grass, report this to your veterinarian. Thank you. My instinct is telling me something isn't right, but the vet disagrees. Licking is an instinctive behavior dogs learn in puppyhood. Picture Credit: It is how your dog shows a calm state of mind and takes stock of the surrounding situation before choosing any other reaction. She still licks If she's licking this can be due to nausea or it could be a form of seizure fly biting seizure. My dog constantly licks his lips.