I am using sergeant's nature's guardian on my 13 year old boxer. The smell is very strong at first but goes away after a few hours and is then very mild. He is doing great with it. We are also using the powder in our house. I have heard of using garlic mashed with mustard seed and put in gelatin capsules to expel worms (VERY effective) but I have never heard of it being used for daily flea treatment. I'll look into that one too. ... View related article.
