How To Get Rid Of Fleas
Flea Spray for Pets

A pet brings fleas indoors faster than any other source, and treating the home without treating the animal restarts the infestation in days. A flea spray for pets eliminates biting adults on the dog or cat directly while many formulas also include an IGR to stop eggs and larvae from developing on the animal's coat.
Why a Pet-Specific Flea Spray Matters
A flea spray formulated for pets uses active ingredients and concentrations approved for direct application to fur and skin, while premise sprays are not. Applying a premise spray directly to a dog or cat can cause skin reactions, ingestion exposure when the pet grooms, or worse with cats, since cats are far more sensitive to certain pyrethroids than dogs.
Pet-labeled products solve three problems at once:
- They eliminate biting adult fleas living on the animal.
- Many include an IGR that prevents flea eggs from hatching in the coat.
- Some, like Wondercide and Cedarcide products, double as a flea repellent that pets can wear between full treatments.
Choosing the Right Spray for the Animal
Always read the label for species and weight restrictions. Some products are dog-only, some are cat-only, and others cover both with separate dilution rates.
- Dog-only sprays: Flee Plus IGR For Dogs and Flee Flea & Tick Collar For Dogs
- Cat-only sprays: Flee Plus IGR For Cats
- Dogs and cats: Petcor 2 Flea & Tick Spray and Wondercide Flea & Tick Shampoo for Dogs + Cats
How to Apply Flea Spray for Dogs
A flea spray for dogs goes on dry fur after a full brushing. Hold the bottle six to eight inches from the coat and spray against the direction of hair growth so the product reaches skin level. Cover from neck to tail, then rub gently with a gloved hand to distribute. Avoid the eyes, nose, mouth, and any open wounds. For long-haired or thick-coated dogs, part the fur in sections to ensure skin contact.
Treatment Frequency
Most ready-to-use sprays allow weekly application. IGR-containing products often hold for up to 60 days on the coat. Always check the label for the specific reapplication interval and maximum number of treatments.
How to Apply Flea Spray for Cats
A flea spray for cats requires extra care for two reasons: cats are sensitive to many pyrethroid actives, and they ingest the spray during grooming. Use only products specifically labeled for feline application.
Spray onto a clean cloth, then wipe the coat thoroughly. This method delivers the product without the noise of an aerosol and avoids overapplication. Pay attention to the neck, behind the ears, the belly, and the base of the tail where fleas concentrate. Never use a dog flea product on a cat unless the label explicitly approves it.
Use a Pet Spray Alongside Indoor and Outdoor Treatments
Treating the pet alone leaves eggs and larvae in the home environment. Combine your pet spray with these companion products to break the full cycle.
- Treat carpets, bedding, and floors with a flea aerosol.
- Mix a flea insecticide concentrate for whole-home spraying.
- Add a flea IGR to stop the breeding cycle.
- Apply flea dust to wall voids and pet sleeping cracks.
- Treat the yard with granular flea insecticides.
- For pets that also pick up ticks, see our tick control products.
Frequently Asked Questions About Flea Spray for Pets
How often should I use flea spray on my dog or cat?
Most ready-to-use pet sprays are labeled for weekly application as needed, while IGR-containing formulas often last up to 60 days on the coat. Always read the specific product label for reapplication interval, maximum yearly treatments, and species restrictions.
Can I use the same flea spray on my dog and my cat?
Only if the label specifically approves both species. Many products labeled for dogs contain pyrethroid concentrations toxic to cats. When in doubt, choose a product that explicitly carries dual approval, or buy a separate cat-specific formula.
What is the difference between a flea repellent and a flea spray?
A flea repellent uses active ingredients that drive fleas away before they bite, often using cedar oil, peppermint, or similar essentials. A traditional flea spray for cats and dogs eliminates biting adults already on the animal. Some products do both. Wondercide's natural essential oil sprays are an example of a dual-purpose product.
Are natural flea sprays as effective as conventional ones?
Natural sprays based on cedar oil, peppermint, and other essential oils can provide useful repellency and short-term knockdown for light infestations. For active heavy infestations, conventional pet sprays with proven actives like permethrin or methoprene typically work faster and last longer.
Can flea spray for pets replace whole-home treatment?
No. Treating only the pet leaves the 95 percent of the flea population living as eggs, larvae, and pupae in carpets, bedding, and yards. Pair pet sprays with carpet aerosols, premise concentrates, an IGR, and outdoor granules for complete control.
Treat Your Pets and Your Home Together With DIY Pest Control
Stop fleas at every stage, from the dog walking through the door to the eggs hidden under the couch. Shop our complete pet flea spray selection above, or call our knowledgeable staff at 1-800-476-3368 for help building a treatment plan around your pets and your living space.



















