Are there risks to using different flea treatments together on my dog?
Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Dani is super cute!
I think that is just A LOT of chemicals that are not necessary. Fipronil, which Frontline, just isn't that good anymore. I see multiple pets a week that have infestations and are using Fipronil. Flea baths do nothing to prevent fleas from jumping back on by the next day. Fipronil shouldn't by used 2 days before or 2 days after bathing or the product will not work well. With all the new products out there: Seresto collar, Bravecto, Simparica and Nexgard I see not reason to put 3 different chemicals on your dog. I am sure she will be fine but almost every product comes with risks and side effects which are likely compounded by using 3 at once. Most are chemicals aimed specifically at insect biology not mammalian.
I would choose one product and use that. I hope this helps and I wish you and Dani the best!
Updated on September 23rd, 2025