Bitter Yuck Chew Deterrent Spray No Chew Spray. There is no job too big for Bitter yuck spray. The convenient trigger sprayer makes applying quick and easy. Our special water based formula will not sting or stain. Can be used directly on pet?s hot spots, fur, bandages, and more. Can be used on plants also. Stops Dogs, Cats Horses from chewing on: Hot Spots, Summer Itch, Sores, Wounds, Bandages, Furniture, Drapes, Wood, Paws, Tails Manes May be sprayed over topical medication. Can be used on or around plants. Understanding Why Pets Chew: Pets chew for various reasons; teething, exploration, separation anxiety, boredom and stress. Chewing is a natural animal behavior, so the goal is to effectively train your pet to chew on appropriate objects. Be sure your pet has appropriate chewing toys. How Bitter yuck Works: To most pets, Bitter yuck has an unappealing taste, making chewing on the particular sprayed object unpleasant and decreasing the unwanted behavior. Due to the complexities of taste preferences and behavior issues, results may vary. It is important to monitor your pet?s reaction to Bitter YUCK. Be sure your pet is deterred by the taste before leaving them alone with the object being sprayed.