What Home Remedy Will Kill Fleas on Dogs?

A quick look through any doggy forum or Facebook group will show you that the problem with fleas is a common one. Fleas can be irritating and discomforting for your dog and make them scratch themselves raw. Getting rid of fleas on a dog isn’t always as simple as it might look, but there are many products on the market today to make life with fleas less of a hassle.

  • Vet’s Best Flea, Tick and Mite Spray for Dogs
  • Tropiclean Natural Flea and Tick Spray for Dogs
  • FRONTLINE Dog Spray
  • Advantage Flea and Tick Treatment Spray for Dogs
  • K9 Advantix II Flea and Tick Prevention for Dogs
  • Capstar Fast-Acting Oral Flea Treatment for Dogs
  • FRONTLINE Plus Flea and Tick Treatment for Dogs

What home remedy will kill fleas on my dog?

As you probably know, there are a lot of home remedies that you can use to get rid of fleas on your dog. These include vinegar, salt, baking soda, essential oils, and other organic ingredients. I’ve tried quite a few and will give you a brief overview of each one along with the pros and cons of each remedy.


You may have heard that vinegar can kill fleas. The truth is, it won’t. And the reason you’ve heard that it does is because of a misunderstanding about the real purpose of vinegar when used as a flea repellent.

The fact is, vinegar can help in the prevention of fleas, but not in their eradication.

Vinegar contains acetic acid, which has been shown to kill some forms of fungus and bacteria. Fleas are insects and not fungi, so they aren’t affected by this component of vinegar. Vinegar also contains potassium salts, which give it an acidic pH level, making it safe for use as an organic pesticide by helping to break down the outer membrane of harmful insects. But again, fleas don’t have this type of outer membrane. There are some theories out there that suggest that vinegar’s acidic properties will “cook” fleas to death, but there isn’t any proof or scientific support for these claims.


Salt is not an effective home remedy for killing fleas on your dog. While it can be an effective way to repel fleas, too much salt will actually harm your dog.

Most people know that salt is a chemical compound composed primarily of sodium and chloride. It’s also pretty abrasive to human skin and can cause serious damage if it’s not used properly. So why would anyone put salt on their dog?

Treating fleas with salt, or any other chemical is extremely dangerous. The potential harm to your dog far outweighs the benefits. Here are some reasons why you should not use salt or any other chemical to treat fleas on your pet:

  • Skin irritation – Salt is extremely irritating to the skin and can cause painful burns in some cases. Your dog will suffer from intense itching, which can lead to infections if you don’t address the problem right away.
  • Excessive thirst – Excessive drinking is a side effect of salt poisoning, so your dog could potentially drink large amounts of water at once and may cause bloat, which is fatal in most cases.
  • Heart problems – If ingested salt causes dangerous changes in blood pressure, heart, and kidney.

Baking soda

The short answer is no. Baking soda can be used as part of a homemade flea control treatment, but it must be used in conjunction with other products to provide an effective solution. It can also be used to remove stains caused by pet urine or feces and leave your carpets smelling fresh and clean.

Takeaway: The best way to rid your dog of fleas is with a good flea shampoo or spray. Don’t waste precious money on miracle home remedies that don’t work!

Nothing is killing the fleas on my dog

The first thing you’ll need to do is get rid of the fleas that are already on your dog. You can give a dose of Capstar or Advantus to your dog, which will start killing fleas immediately; and then use a monthly flea prevention such as Frontline Plus, Advantage, NexGard, K9 Advantix II, and Sentinel. The next step is to treat your house with a flea product containing a growth regulator. This will kill any newly hatched fleas and limit reproduction.


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Hannah Elizabeth is an English animal behavior author, having written for several online publications. With a degree in Animal Behaviour and over a decade of practical animal husbandry experience, Hannah's articles cover everything from pet care to wildlife conservation. When she isn't creating content for blog posts, Hannah enjoys long walks with her Rottweiler cross Senna, reading fantasy novels and breeding aquarium shrimp.

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