How to Get Rid of Fleas on Dogs: 7 Steps That Work

To get rid of fleas on dogs, you have to fight them in three places at once: on your dog, in your home, and in your yard. Start with a bath and a fine flea comb to pull off the live fleas. Then ask your vet for a flea product that kills new fleas for weeks, not hours. Treat every pet in the house on the same day. Wash all bedding in hot water and vacuum every day. Keep it up for several weeks, because new fleas keep hatching from eggs you can't see. The fleas on your dog are only a small part of the problem. Most of them are hiding in your carpet.

In this article

• Step 1: How do you know it's fleas?
• Step 2: What kills fleas on a dog right away?
• Step 3: Which flea product should you use?
• Step 4: Why treat every pet in the house?
• Step 5: How do you get rid of fleas in the house?
• Step 6: Do you need to treat the yard?
• Step 7: How long does it take to get rid of fleas?
• Frequently asked questions

Why is it so hard to get rid of fleas on dogs?

Fleas are hard to beat because most of them are not on your dog. In a normal flea problem, only about 5% of the fleas are adults. The rest are eggs, larvae, and pupae. They sit in carpet, couch cushions, dog beds, and shady dirt outside. Vet sources call the fleas you see "the tip of the iceberg."

A female flea lays her eggs on your dog. The eggs are smooth, so they fall off wherever your dog walks or sleeps. That is how one flea turns into a house full of them.

Step 1: How do you know it's fleas?

Look before you treat. Lots of things make a dog itch, so check for proof first.

Use a flea comb

A flea comb has very fine teeth. Run it along your dog's back, near the base of the tail, and on the belly. Fleas like these warm spots. You may catch a small, dark, fast bug on the comb.

Do the paper towel test

You may not see a flea at all. Look instead for "flea dirt." These are tiny black specks, like ground pepper. Tap them onto a wet white paper towel. If they smear red or rusty brown, it's flea poop. It is made of dried blood, and it means fleas are there.

Know the other signs

• Scratching, chewing, or licking near the tail
• Red bumps or scabs on the skin
• Hair loss on the lower back
• Pale gums in a small puppy, which can mean blood loss. Call your vet right away.

Step 2: What kills fleas on a dog right away?

A bath and a flea comb are the fastest way to get fleas off your dog today. The CDC says to bathe pets well with soap and water, then comb them with a flea comb. Pay close attention to the face, neck, and the area in front of the tail.

• Wet your dog with warm water.
• Lather the neck first. This makes a ring that stops fleas from running up to the face.
• Work the soap down to the tail and let it sit a few minutes.
• Rinse well, then comb while the coat is still damp.
• Dip the comb in a cup of soapy water after each pass. The soap drowns the fleas.

Keep in mind that a bath only kills the fleas on your dog right now. It does nothing to stop new ones from jumping on tomorrow. That's why Step 3 matters. If your dog is a young puppy, ask your vet before you use any soap or flea shampoo.

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Step 3: Which flea product should you use?

You need a product that keeps killing fleas for weeks. Your vet can help you pick one based on your dog's age, weight, and health. The main types are:

• Chewable pills. Your dog eats them. Fleas die after they bite.
• Spot-on drops. You put them on the skin between the shoulder blades.
• Flea collars. Some last for months.

Read the label every time

Buy the right size for your dog's weight. Never split a large-dog dose between two small dogs. And never use a dog flea product on a cat. Some spot-on drops for dogs contain 45% to 65% permethrin. That is safe for dogs but can kill a cat. International Cat Care calls permethrin one of the most common causes of cat poisoning in the world. If you have a cat, keep them apart until the drops dry, and ask your vet which product is safest.

Step 4: Why treat every pet in the house?

Fleas jump from pet to pet. If you treat the dog but not the cat, the cat keeps the fleas alive. Then they jump right back onto your dog. Treat every dog and cat in the home on the same day, each with a product made for that species. This one step is where many flea fights fail.

Step 5: How do you get rid of fleas in the house?

This is the step most people skip, and it's the one that ends the problem. Remember, about 95% of fleas are in your home, not on your dog.

Wash everything your dog sleeps on

Wash dog beds, blankets, throws, and your own sheets if your dog sleeps with you. Use hot water and dry on high heat. Do it once a week until the fleas are gone.

Vacuum every day

Vacuum carpets, rugs, couches, and the cracks along the floor. Then empty the canister or throw out the bag outside. According to the University of California IPM program, the shaking from a vacuum can make young fleas pop out of their cocoons. That sounds bad, but it's good. A flea still in its cocoon is hard to kill. Once it hatches, your dog's flea product can get it. UC IPM says to keep vacuuming for 10 days to 2 weeks.

Use home sprays with care

If the problem is big, a flea spray for the home or a pest pro may help. Follow the label to the letter. Keep pets and kids out of the room until it's dry.

Step 6: Do you need to treat the yard?

Sometimes. Fleas don't like hot sun. They hide in shady, damp spots, like under decks, bushes, and porches. To make your yard less friendly to fleas:

• Mow often so sun reaches the soil.
• Don't overwater. Fleas like damp ground.
• Rake up leaves and clear out the spots where your dog likes to lie down.
• Keep wild animals, like raccoons and stray cats, from nesting under the house. They can bring in fleas.

Step 7: How long does it take to get rid of fleas?

Plan on several weeks, and sometimes a few months. In a warm house, a flea can go from egg to adult in about 18 days, says UC IPM. And in cool places, a fully formed flea can wait in its cocoon for up to 12 months. So you will likely see a few new fleas even after you do everything right. That doesn't mean it isn't working. It means the eggs are still hatching.

The CDC says you often need two or more follow-up treatments within 5 to 10 days of the first one. Keep your dog on a flea product all year if your vet agrees. It's much easier to keep fleas away than to fight them off again.

What mistakes keep fleas coming back?

• Only treating the dog. The eggs in the carpet will just hatch and jump back on.
• Stopping too soon. Seeing no fleas for a week doesn't mean the cocoons are gone.
• Using the wrong product. Dog products on cats, or the wrong weight dose, can make pets sick.
• Trusting home remedies alone. Some are risky. Garlic, for example, is in the same plant family as onions, which are dangerous for dogs.

Just brought home a rescue dog with fleas? That's very common. Treat the fleas first, then read our 3-3-3 rule guide for rescue dogs to help them settle in. For a young pup, also learn the signs of parvo in puppies.

Frequently asked questions

What kills fleas on dogs instantly?

A bath with plain soap and water kills most adult fleas on contact. Then use a flea comb to pull off the rest. This works fast, but it gives no protection after the bath. For lasting results, pair it with a flea product from your vet.

Can I touch my dog if he has fleas?

Yes. It's fine to pet and cuddle your dog. Fleas that live on dogs may bite people, but they don't live on humans. Wash your hands after combing, and wash your sheets if your dog sleeps in your bed.

How long does it take to get rid of fleas on a dog?

The fleas on your dog can be gone in a day or two with a bath and a good flea product. Clearing your home takes longer, often several weeks. New fleas keep hatching from eggs and cocoons in the carpet, so keep vacuuming and treating on schedule.

Do home remedies like vinegar or essential oils work on fleas?

There's little strong proof that vinegar, lemon, or oils get rid of a real flea problem. Some essential oils, like tea tree oil, can be harmful to pets. Ask your vet before you try any home remedy on your dog.

Can fleas make my dog sick?

Yes. Some dogs are allergic to flea spit, which causes bad itching and sore skin. Dogs can also get tapeworms by swallowing a flea while grooming. Small puppies can lose enough blood to become weak. Call your vet if your dog seems tired or has pale gums.

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