When dogs see things that are not there, one should consider liver congestion as a cause. I would try our homeopathic product Dia-IonX formulated to support diabetics because it contains major liver remedies that help with decreasing inflammation. It helps the liver, pancreas, and endocrine systems. It's therapeutic mineral base helps activate the enzyme systems in the body that help with healing. In addition give digestive enzymes with each meal, Canine probiotics, and Omega 3,6,9 daily. Dia-IonX will help the body better utilize the other supplements for a faster response. In addition make sure that you offer sufficient water free of chlorine and fluoride.
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