Does Hot Water Kill Fleas On Dogs: The Truth Revealed!

Your pets are struggling with itching and discomfort from fleas. Does hot water kill fleas on dogs to reduce this feeling?

Even if you take good care of your canines and keep them clean, this is one of the common problems that can give you a headache.

The environment or other animals they come into contact with can also make the situation worse.

Learning how to handle them is not superfluous. Before things go awry, you can take advantage of what’s available at home. If you’re ready, dig deeper to get more helpful information!

Does Hot Water Kill Fleas On Dogs? 

does hot water kill fleas on dogs
Can Water Kill Fleas

Do fleas die in water? Can you drown a flea in water?

Yes! While warm or hot water can temporarily wash away these insects, it will not provide lasting effects. Combine it with soap or preferably a specialized flea shampoo.

Does It Work?

Can fleas die in water at high temperatures?

Fleas are parasitic insects that can only survive in a small temperature range; thus, hot water kills them.

Temperatures below 40°F and above 100°F will destroy these pests, and it’s a piece of cake to bring water to those temp points!

You can use hot water as an initial control for a serious infestation, but flea products with systemic effects on pests must be included to eliminate the bugs.

How Does It Kill Fleas?

There are not many places where fleas may survive, which aids in limiting their spread. Fleas hate the cold and the heat, which also cleans, sanitizes, and works wonders to eliminate pests.

Flea eggs and mature fleas can be instantly killed by heat when it enters frequent flea hiding places like water or steam.

Does water kill fleas on dogs? Fleas can be killed in water that is 95°F or higher, which is roughly 10 degrees cooler than the normal shower temperature.

This is in contrast to some cockroaches and other tough pests that require temperatures over 130°F to be eliminated.

This entails giving your pets a routine, warm wash, preferably with soapy water or topical flea treatments. The majority of fleas on pets can be removed by washing them thoroughly.

You can also use hot water to eliminate fleas and flea eggs attached to the pet bedding when washing. To prevent the reappearance of fleas on your pet, dry the bedding in the sun.

Effects Of Water Temperature On Pet 

Can fleas drown in water? Yes. Knowing the ideal temperature to kill them is essential for swiftly terminating a flea infestation because different temperatures will affect fleas and other pests differently.

32°F – 44°F

  • Effect: Kill the flea’s life cycle
  • Application: In the winter, opening a window to let in cold air can be sufficient to shoo fleas away without causing future infestations.

45°F – 55°F

  • Effect: It eliminates flea eggs, larvae, and weaker adult males but might not completely impact more resilient females.
  • Application: Strong air conditioning can stop flea reproduction, slow them down, and make it more difficult for them to flee by allowing you time to treat the area.

56°F – 94°F

  • Effect: This is a dangerous zone as it’s suitable for their spread and reproduction.
  • Application: Keep your space higher or under this range to slow down their growth.

95°F – 140°F

  • Effect: Fleas start to die at this range of temperature
  • Application: You can kill fleas using steam, heat, or hot water at this temperature range.


  • Effect: This temperature eliminates these insects and gives them a clean surface.
  • Application: This range will kill all bugs and thoroughly clean surfaces when used to wash flea-infested items and locations.

What Causes Fleas On Dogs

does water kill fleas on dogs
Why Is Fleas On Dogs

The Main Causes

Other Animals

Your dog will likely get fleas from the environment after contact with animals, whether other pets or wild animals. In fact, dog and cat fleas can bite your dog.

The cat fleas are more prevalent, less fussy, and will target both your pet cat and dogs even though it likes to feed on felines.

Your dog could contact flea-carrying birds, rats, rabbits, squirrels, foxes, and deer during a regular stroll or even in your garden.

Your Home

The insects can enter your home without being welcomed and quickly turn it into their own.

Fleas and their eggs can find their way to the house by sticking to people’s clothing, visiting pets, nesting wild creatures like mice that may have nested under your floorboards, and even on your skin.

Pet Facilities

Fleas might “invade” your dogs in rooms where other dogs congregate. Dog daycare, veterinarian clinics, grooming salons, and boarding kennels don’t always have flea-free environments.

Typical Symptoms

Examine your pet’s fur closely and look for microscopic black flecks. Feces that include blood that has been digested are called “flea dirt.”

Have your dog stand, sit, or lie down on a white towel, then gently brush him with a comb to see if any fleas or flea filth jump off.

When a flea bites your dog, its saliva causes intense itching, which most frequently appears in the tail and hindquarters of your dog. The first thing your dog will do is start chewing on its fur.

Additional symptoms:

  • Rashes
  • Hair loss
  • Biting or licking the skin
  • Hot and red spots on the skin

How To Remove Fleas On Your Dogs? 

Give Them A Bath

Does water kill fleas? As mentioned above, warm water can do it! That’s why you should wash dogs to get rid of these insects instantly and, at the same time, make your pets more comfortable.

Even though it’s summer, you are not advised to bathe your dog in cold water.

Fleas can be removed from your pet’s fur and skin with only lukewarm water or water and a little soap. Adult fleas can be drowned with the aid of dish soap.

Ajax dish soap can come in handy but not the optimal choice.

Consult your veterinarian before using a flea wash or comparable product. It can dry up your pet’s skin and strip the oils from their fur.

Your pet’s skin may be especially delicate if it has a flea allergy. Also, the same is true when your pet has any other open sores or “raw areas” on its skin.

Several of the chemicals found in flea products have the potential to aggravate illnesses and rashes.

Utilize The Comb

Insects can be caught by dipping the comb in a water and dish soap solution, preventing them from escaping.

A flea comb has teeth set apart to collect fleas while allowing fur from your pet to pass through.

These combs also aid in removing flea feces, often known as “flea filth,” described as dark brown or black dots resembling pepper flakes. The comb might also assist in clearing eggs from your pet’s fur.

Use Apple Vinegar

Fleas won’t likely bother your canine once the pet has vinegar on its fur because they don’t enjoy the taste or smell of it. Fill a spray bottle with water and apple cider vinegar after diluting it.

If your pet dislikes being sprayed, use a grooming session to massage the mixture into their fur after dipping a brush in the solution.

Clean Your Home

To eliminate any last-minute flea traces, wash and clean your house. Fleas require a host, although flea eggs, larvae, and pupae can thrive practically everywhere, including carpets, bedding, and upholstery.

Types Of Flea Treatments For Dogs

can water kill fleas
Types Of Flea Treatments

Over-The-Counter Flea Treatments

Dogs can use a variety of over-the-counter (OTC) flea remedies. Yet, not every method is completely successful.

Most of these treatments will kill adult fleas in 24–48 hours. Yet, there are various restrictions for each category.

Topical Flea Treatment

Topical therapies are administered directly to your dog’s skin, starting at the shoulder blades.

Via the hair follicles on your dog’s skin and the natural oil in their skin, the topical solution spreads throughout their coat.

The best treatment for dogs is one that eliminates fleas and repels them at every step of their life cycle.

Wearable Flea Treatment

Topical treatments for fleas can be messy; wearable therapies are less so. Sadly, they don’t work as well as other medications.

The flea and tick collar is a typical illustration. If your dog wears a collar around its neck, its tail, and hind legs may not be as well protected.

When using flea collars, follow the directions carefully and consult your veterinarian.


What Kills Fleas Instantly On A Dog?

The safest method for rapidly killing dog fleas is an oral fast-acting pill containing nitenpyram.

To kill adult fleas, you can also give your dog a bath in hot, soapy water, but this is not a viable long-term cure.

Common brands are available over the counter, online, and from veterinarians. Insecticide Nitenpyram, the active component, begins eliminating fleas within 30 minutes and continues for up to 48 hours.

Will Hot Water Kill Flea Eggs?

No. Even when submerged, flea eggs are incredibly difficult to kill by just dropping them in water. They can survive because of a unique structure called a plastron, which can draw oxygen out of water.

A mesh holds the plastron, a gas layer that prevents water from entering the egg, together within the shell.

Putting washing soda in the water interferes and disables the metabolism, thereby suffocating the egg.

Can I Put Salt Water On My Dog To Kill Fleas?

Can you drown fleas on a dog with salt water? Yes, but don’t overdo it.

It is believed that taking a salty bath or swimming in the sea may kill the fleas on your dog since salt can dehydrate fleas. Yet, salt can also make your dog’s skin irritated and dry.

Also, double-coated breeds like the Husky, Shiba Inu, and Akita are more susceptible than other breeds to getting skin rashes following a sea swim.

The water might irritate the fur when it becomes stuck inside.

Final Thoughts 

Does hot water kill fleas on dogs? Yes!

Hot water can wash away fleas from the dog’s coat. They destroy the bugs’ eggs at a suitable temperature and prevent their development.

In addition to combining with specialized soap or conditioner to bathe your dog, you can also use hot water to clean the carpet and surrounding space.

It reduces the risk of egg production and disinfects well.


Photo of author
Hi I am Mitchell. Dog Growth is a blog about dog caring and training where I share my experiences to my community. Hope you enjoy it!

Leave a Comment