Can you tell if bathing my dog in Dawn Dish soap can help with the fleas. My Vet told me to bath her in the dawn dish soap. I did that on Monday morning and checked last nite and this morning and have not see a flea on her belly. She also isn’t itching and biting now. She is allergic to the fleas. I have been to the Vets since June till now. She has been having the treatments every month, but it seems that the bath has helped. Is it my e imagination or is that true is does work?