Dog Flea Treatments
83 productsFind the right flea treatment for your dog, whether you need fast relief for an active infestation or monthly prevention that keeps fleas from coming back.[more] Browse chews, spot-ons and collars from NexGard, Bravecto and Seresto, part of our vet-recommended dog flea, tick and worming treatments range.
Why fleas need more than a quick fix
The fleas you can see on your dog are only a small part of the problem. Most of a flea population is in your home as eggs, larvae and pupae developing in carpet, bedding and floorboards, and those pupae can lie dormant for weeks before hatching, which is why a one-off wash never quite works. A good flea treatment does two jobs: it clears the fleas on your dog and, used every month, stops the next generation taking hold. For a dog that is already scratching, the fastest results come from treating your dog, every other pet in the home, and the environment at the same time.
How to tell if your dog has fleas
Fleas are small and fast, so you will often spot the signs before the flea itself. Look for:
- Scratching, biting and licking, especially around the tail base, belly and back legs.
- Flea dirt: tiny black specks in the coat that turn rusty red on a damp tissue (digested blood).
- Thinning hair or scabs, often from a flea allergy, where a single bite sets off intense itching.
Flea allergy dermatitis is one of the most common skin problems vets see in dogs, and it can flare from just one or two bites. If your dog is very itchy, has broken skin or is losing hair, see your vet, as they may need treatment for the skin alongside flea control.
Treating an active infestation vs preventing fleas
It helps to know which job you are doing, because the products differ:
- Fast knockdown for a dog crawling with fleas now: a tablet like Capstar starts killing adult fleas within hours, buying relief while a longer-acting product takes over.
- Monthly prevention is the real fix: a NexGard chew or an Advocate spot-on keeps working for weeks so new fleas cannot establish.
- Treat the whole household: every dog and cat in the home needs treating at once, plus hot-washing bedding and vacuuming, or the untreated pet keeps the cycle going.
A heavy infestation can take a couple of months to fully break, so consistency matters more than any single dose. If you keep seeing fleas despite regular treatment, it usually means the home still needs work or the product is not the right fit, so check with your vet.
Choosing a flea treatment: chews, spot-ons, collars and rinses
Flea treatments come in a few formats, and the best one is the one you will keep up with:
- Chews suit dogs who swim or dislike having product on their coat; NexGard is monthly and Bravecto chews run up to three months.
- Spot-ons are applied to the skin at the back of the neck and suit dogs who will not take a tablet.
- Collars like Seresto give months of hands-off cover in one application.
- Rinses and shampoos, such as Permoxin, help wash down a heavy burden and can be useful alongside a monthly preventative.
Trusted flea treatment brands
Australia's leading flea brands differ mainly in what else they cover and how long each dose lasts:
- NexGard and NexGard Spectra: monthly chews for fleas and ticks, with Spectra adding heartworm and intestinal worms.
- Bravecto: fleas and ticks for up to three months per chew or spot-on, for fewer doses to remember.
- Simparica Trio: a monthly all-in-one chew covering fleas, ticks, heartworm and worms.
- Advocate: a monthly spot-on for fleas, heartworm and intestinal worms.
- Seresto: a long-lasting flea and tick collar.
Want to learn more?
- Read our vets' guide to the Best Flea & Tick Treatments for Dogs in Australia.
- Need worm and tick cover too? See dog flea, tick and worming treatments.
- Treating a cat as well? See cat flea treatments.
Frequently Asked Questions
Getting rid of fleas on a dog usually takes a few days for the dog itself, but clearing the home can take up to two or three months. A fast-acting tablet kills the adult fleas on your dog within hours, while a monthly preventative stops new ones. The lag is the eggs and pupae in the environment hatching over time, which is why consistency and treating the home matter.
Most dogs need flea prevention every month, all year round, because Australia's warm climate lets fleas breed in every season. Some products, such as Bravecto, last up to three months per dose. Keeping to the schedule is what prevents an infestation, so set a reminder or use an auto-delivery to avoid gaps.
Yes, indoor dogs still need flea prevention, because fleas hitch a ride indoors on shoes, other pets and visiting animals, and Australia's warm climate lets them breed almost year-round. It is far easier to keep a flea-free home flea-free than to clear an infestation once it takes hold, so most vets recommend keeping every dog on a preventative all year. Dogs that mix with others or spend time outdoors are at higher risk again.
Puppies can be treated for fleas, but only with a product labelled for their age and weight, as many adult treatments are not suitable for very young pups. A heavy flea burden can cause anaemia in a small or young puppy, so treat the mother and any other pets at the same time, and choose from puppy flea and tick options. Check with your vet if your puppy is very young.
Dog fleas can bite humans but they do not live on people, since they need an animal host to breed. They very much live in your house, though, with eggs and larvae developing in carpet, bedding and soft furnishings. That is why effective flea control always treats the home and every pet, not just the dog you can see scratching.
Neither flea chews nor spot-ons is universally better, so the right choice comes down to your dog and your routine. Chews suit dogs who swim often or dislike product on their coat and remove any wash-off worry, while spot-ons suit dogs who will not take a tablet. Both are highly effective when given on schedule at the correct weight.
A good flea treatment is one matched to your dog's weight and lifestyle that you can give consistently, from a registered veterinary brand. Look at how long each dose lasts, whether you also need tick, heartworm or worm cover, and the format your dog will accept. Your vet can help you match the product to your dog's needs.
