This is not normal behavior. It sounds like your dog is over grooming herself and the environment. This is typically a sign of obsessive-compulsive behavior. There can be medical and behavioral (often anxiety) causes of over grooming. Have your dog examined by a veterinarian to rule out medication causes and work up behavioral issues. Behavioral issues are treated with behavior modification and medications.
Why Does My Dog Constantly Lick Herself And How Do I Make Her Stop? She Also Licks The Floor And Her Pillow.
She could have allergies.
There is a product that you can buy at your vet or even at pet stores like pet smart. Its called bitter apple and comes in a spray or a stick like deodorant. It tastes nasty to dogs so they avoid licking it.