Bathe your pet using Dawn dishwashing liquid to kill the fleas. Wet your pet’s fur to the skin, and use enough Dawn to work up a good lather. Be sure to cover the whole body, and pay attention to the places fleas like to hide, such as the neck, throat and behind the front legs. As you work, the fleas will often run away from the soap, so be sure to lather the tail and extremities well. Leave the lather on your pet for five to ten minutes. Rinse completely. You will see dead fleas immediately.