Causes. Obsessive and compulsive licking in dogs have a few standard causes. Your dog probably singled out the couches, carpet and beds for "acceptable" reasons before the behavior became obsessive or compulsive, and it has since escalated.
One of the more common compulsive behaviors is excessive licking. Your dog may lick the air, carpet, bed, walls or himself. OCD is caused by stress, so to treat this behavior you should eliminate any environmental stressors that cause him to lick in the first place.