Even to use to get rid of fleas your still endangering your pet and their respiratory system. I worked in a pet store for many years and learned several safe and effective ways to get rid of fleas. Best way was to bathe your pet in Dawn dish soap, fleas hate it.Also, feeding your pet things fleas dislike such as garlic or yeast. For dogs, you can add vinegar to their water (do not do this for cats they are too sensitive).ven to use to get rid of fleas your still endangering your pet and their respiratory system. I worked in a pet store for many years and learned several safe and effective ways to get rid of fleas. Best way was to bathe your pet in Dawn dish soap, fleas hate it.