How Does Dawn Dish Soap Kill Fleas On Dogs. To use dawn dish soap to treat a dog with a mite infestation, prepare some bath water for your dog and add dawn dish soap to it. Do fleas stand a chance against dawn dishwashing soap?
“dawn (and other soaps like it) creates a kind of surfactant, or surface tension, that will compromise the exoskeleton and make adult fleas sink,” he says. Applying it for about 10 minutes and thoroughly rinsing the dog can rid them of fleas. This is good news for persons seeking to apply such treatments to their dogs and pets.