if you use dawn, be sure to leave it on for a couple of minutes to give it time to suffocate all the fleas. Also, don't use another tube of advantage. It says not to bathe her for 2 days before or 2 days after using it! I work a t am vets office and they have a new advantage multi that I won't reccomend. (My boss the vet does but I hate it). If your vet reccomends it ask to read the box first. It says it takes care of heartworms, fleas whips hooks and rounds. Watch your dog for 1/2 hour after applying. Do not let any other animals or children around dog for 1/2 hour or an hour, I cna't remember which. It's crazy, if it's that toxic, it ain't goin on my babies!