My dog (one year old beagle) goes insane when I leave. I could walk out the door for 10 seconds and she starts crying, and when I come back in she's nearly foaming at the mouth. I've tried various methods that I have read about (put her in her cage for a short period, let her out and then leave her in there longer, same thing with leaving the house), but nothing seems to work. I know it takes patience, but we've been doing the same exercises for three months. From what I've read, when a dog has a severe case of separation anxiety they need behavioral therapy from a trained dog therapist or medication. Am I way off here or do I need to talk to my vet about this?