Before you take any action, make sure your dog is only showing the above signs while you’re away. Some symptoms may have other causes: pollution due to medical problems, howling because of sirens, barking because of boredom, destruction because it is typical of very young dogs, …
If you have reason to believe your dog is suffering from separation anxiety, there are a few things you can do to help.
If your dog is young, gradually introduce him to being alone – for a short time at first – and each time offer him a positive experience that he can relate to being away from you. Whether your dog is a puppy or an adult, your dog should not feel uncomfortable or anxious at any point during training.