What scents are dogs afraid of

Dogs have a very good sense of smell, which is why many of them are used as working dogs. But also because of their keen sense of smell, dogs can’t smell a lot of things. For example: perfume, leather, motor oil, onions, onions, etc. Smelling too many irritating smells can cause sneezing and tears, so it is important to ventilate your home to avoid irritating your dog.