Dogs lick a lot for many reasons. Licking may be a sign of affection, your dog’s way of showing you that she’s enjoying spending time cuddled on the couch with you. Or, she may just like the taste of your soap! Extreme licking: Though it’s usually harmless, licking can be a problem if carried to an extreme. Sometimes dogs can lick compulsively or as a response to stress or boredom. Obsessive dogs that lick themselves non-stop can lick their fur off and even injure their skin. This is a behavioral problem that may require veterinary intervention. If you’re worried that your dog’s licking is unusual, consult your veterinarian.