Does many people want to know what smells dogs fear the most? In fact, dogs are most afraid of the smell of chili, pepper, lemon, bitter gourd, etc.
Dogs are most afraid of some irritating odors, such as perfume, calories, camphor balls, tobacco, gasoline, etc. Even some fruits with relatively large flavors, such as citrus, oranges, durians, etc., can make some dogs feel uncomfortable. A pungent smell can affect the dog's sense of smell.
If you want to keep your dog away from a certain place by smell, you can go to the pet store to buy a bottle of smell spray that is specifically designed to prevent the dog from approaching. Just spray where you need it, and the dog will walk away because he doesn't like the smell. It is also safer for dogs and will not cause any bad side effects due to the smell.