Updated on:


How to get rid of fleas on your dog is a question that brings headaches to many owners, luckily in this article we give you the keys to get rid of fleas once and for all.

Fleas, small wingless insects, are a common concern among pet owners, as they can infest dogs and cause discomfort to both pets and their owners. These parasites, known scientifically as fleas of the Siphonaptera family, feed on the blood of mammals, and dogs are one of their favorite hosts. Detecting the presence of fleas on your dog is critical to preventing health problems and maintaining a safe home environment. Below, we will explore all the aspects you should keep in mind to successfully combat fleas on your dog.

How to detect the presence of fleas on your dog?

Fleas are expert jumpers and move quickly between the hairs of dogs. These parasites feed on the blood of their host, which can cause discomfort in dogs, such as intense itching, skin irritation and even allergies. In addition, fleas can transmit diseases and internal parasites, making early detection and treatment essential.

The most striking sign that usually alerts owners to the presence of fleas is that the dog won’t stop scratching. But to make sure that the constant scratching is due to flea infestation, you should follow these instructions:

  • Visual inspection: Look at your dog’s skin and coat. Fleas are small and dark, but their droppings, which look like small peppercorns, may be easier to detect. Pay attention to areas such as the neck, back and base of the tail.
  • Combing with a flea comb: Use a fine-toothed comb to comb your dog’s coat. If you find small black particles or jumping insects, it could be fleas.
  • Your dog won’t stop scratching: The presence of fleas can lead your dog to behave unusually, scratching excessively or showing signs of irritation. Pay attention to these behavioral changes.
  • Biting and licking: If your dog bites and licks his paws or any other part of his body, with a lot of insistence, it could be fleas. Besides scratching non-stop, biting and licking could be another symptom of flea infestation in your dog. These are normal attitudes to the itching caused by flea bites.
  • Skin lesions: Fleas can cause irritation and lesions on your dog’s skin. Look for red, inflamed areas or wounds and scabs, as these can be signs of flea bites.
  • Check your dog’s resting areas: Fleas often concentrate in areas where dogs rest, such as their beds or favorite places. Examine these areas for signs of fleas or their debris.

Detecting the presence of fleas in the early stages is key to preventing a more severe infestation. If you suspect your dog has fleas, it is advisable to consult a veterinarian for guidance on proper treatment and prevention. Also, be sure to maintain a clean environment and treat not only your pet, but also its surroundings, to avoid future infestations.


To get rid of fleas we must first make sure that our dog is really scratching because of flea infestation and not for other causes. To make it easier for you to find this tiny parasite, it is very useful to know the most common areas where they are found. Fleas on dogs tend to lodge in specific areas of their bodies. These tiny parasites are experts at hiding in the fur and skin of animals. Here are some common areas where fleas tend to settle on dogs:

  • Base of the tail: Fleas are often found at the base of the tail and around the anal area. The skin here is thinner, which facilitates their blood feeding.
  • Neck and head: The area around the neck and head is another favorite place for fleas. They can hide behind the ears and along the neck line.
  • Abdomen and groin: These areas are often warm and flea friendly. Check your dog’s abdomen and groin carefully, as these areas may also be susceptible.
  • Between the toes: Fleas can hide in the spaces between the toes, where the skin is softer and more accessible.
  • Armpits: The armpits are another area prone to fleas because they provide a warm, protected environment.
  • Lower back and dorsal area: The lower back and dorsal region are places where fleas can easily hide in the coat.

These areas are the most conducive for fleas to lodge on your dog. This way you can go directly to the fleas’ favorite areas to find them. A white or light-colored dog’s coat allows you to find them more easily, on dark manes it is more complicated. In case of black or dark coat, open stripes in the hair and look at the skin for redness, bites, flea eggs or the fleas themselves.


Fleas can cause various problems and discomfort to dogs due to their feeding behavior and the possible complications that can arise. Here are some of the damage fleas can cause to dogs:

  • Itching and discomfort: Flea bites are irritating and can cause intense itching in dogs. The constant discomfort can lead to scratching, licking or biting, which can result in areas of reddened and irritated skin.
  • Allergic dermatitis: Some dogs may be allergic to substances present in flea saliva. The bite of a single flea can trigger an allergic reaction in these dogs, known as flea allergic dermatitis (FAD), which causes skin irritation, hair loss and skin lesions.
  • Anemia: In severe cases of infestation, fleas can consume enough blood to cause anemia in dogs, especially in puppies or more vulnerable dogs.
  • Disease transmission: Fleas can transmit a variety of diseases and parasites. For example, they can transmit tapeworm, a type of intestinal worm, when the dog ingests an infected flea during the grooming process.
  • General discomfort: The constant presence of fleas can lead to general discomfort in dogs. They may become restless, lose their appetite and show changes in their normal behavior.
  • Secondary Infections: Itching and excessive scratching can cause skin lesions, increasing the risk of secondary bacterial infections.

To prevent these problems, it is essential to take preventive measures against fleas and treat any infestation effectively. Consult your veterinarian for recommended flea control products and a treatment to eliminate fleas. Below, we explain the most effective flea treatments.


Getting rid of fleas in dogs requires a comprehensive approach that includes treating the animal, its environment, and long-term preventive measures. For a complete, effective, and lasting treatment, we must take into account all three aspects.


There are various flea control products for dogs, each with their own characteristics and application methods:

  • Spot-Ons or Flea Pipettes: These are small liquid ampoules applied directly to the dog’s skin, usually on the back of the neck. They contain active ingredients that are absorbed through the skin, providing protection against fleas and ticks for a specific period, which can vary between one and four weeks.
  • Flea Collars: Flea collars contain repellent or insecticidal ingredients that are released gradually to provide continuous protection. They fit around the dog’s neck and are effective against fleas and ticks. Some collars also offer additional protection against other parasites.
  • Flea Shampoos: Flea shampoos are used during the dog’s bath. They contain active ingredients that kill fleas present in the dog’s coat during the bath. However, the protection is temporary and usually doesn’t last as long as other methods.
  • Flea Tablets or Chewables: These are oral tablets containing ingredients that kill fleas when ingested by the dog. The action is quick, usually starting within a few hours. Some products also offer continuous protection.
  • Flea Sprays: Flea sprays are applied directly to the dog’s coat. They can contain insecticides or repellent ingredients. Some are effective for both killing present fleas and preventing new infestations.
  • Flea Powders: Flea powders are dusted onto the dog’s coat and can be distributed with a brush. These powders often contain insecticides and can provide temporary protection.
  • Flea Injections: Some veterinarians may administer flea injections that offer protection for a more extended period. These injections often contain insect growth regulators and prevent flea development.
  • Monthly Oral Administration Systems: Some flea products come in the form of tablets or chewables administered monthly. These products often provide protection not only against fleas but also against other parasites such as ticks and intestinal worms.

These products often contain ingredients to kill fleas or prevent their development. Remember to follow the product instructions and apply the treatment according to the recommended frequency. Your veterinarian will advise you on the appropriate flea control product for your dog’s age, weight, and overall health.

Cleaning and disinfection of the environment

This second step is important to complement the first one. In other words, we must eliminate the fleas from the dog, but also those that may have settled in its bed, sofa, blanket, or other items. Otherwise, it could become infested again.

  • Wash your dog’s bedding, blankets, and toys in hot water to eliminate fleas and their eggs.
  • Vacuum your home regularly, paying special attention to areas where your dog rests. Dispose of the vacuum bag or clean the container after each use to prevent fleas from returning.
  • Use environmental insecticides or specific sprays to treat areas where fleas might hide, such as carpets, furniture, and curtains.


The last step is long-term prevention. To achieve this, we will follow the following tips:

  • Maintain constant hygiene in the home by regularly cleaning the areas where your dog spends time.
  • Consider the use of long-term preventive products, such as insecticidal sprays or powders, that help prevent future infestations.
  • If possible, restrict your dog’s access to areas where fleas may proliferate, such as tall grass or places with dense vegetation.
  • Inspect your dog regularly for signs of fleas, even after treating an infestation.

You should always consult with the veterinarian if the infestation persists or is severe. And in cases of dogs with skin problems or allergies caused by fleas, as they may need some additional treatment.

Important Note: You must consult with your veterinarian before using any flea treatment, especially if your dog has pre-existing medical conditions or is taking other medications.



Combining prevention with flea treatment using spot-on solutions, tablets, or collars, along with home cleaning and flea repellents, constitutes the most effective measures against fleas in dogs. Nevertheless, it’s important to consider that the effectiveness of anti-flea products can vary based on various factors, including the severity of the infestation, the overall health of your pet, and environmental conditions. There is no single product that is universally the most effective for all situations. However, the mentioned products are widely recommended and have proven to be effective in flea control.


The time it takes for fleas to die after the application of an anti-flea product depends on the type of treatment used. Here are some general estimates for different methods:

  • Flea Spot-Ons and Collars: Most of these products begin killing fleas within hours. However, some products may take up to 24 hours to completely eliminate fleas.
  • Flea Tablets: Flea tablets typically act very quickly. Some start killing fleas in as little as 30 minutes, and most achieve complete control within 24 hours.
  • Flea Shampoos: Flea shampoos kill fleas during the bath, but their residual effect may vary. Some products offer extended protection, while others primarily act during the bath.
  • Sprays and Aerosols: Flea sprays and aerosols can have an immediate effect upon contact with fleas. The duration of the effect may vary, and some products provide continuous protection for a specific period.

It’s important to follow the product instructions and consider that some treatments are designed not only to kill present fleas but also to prevent future infestations. The indicated effectiveness times are approximate and depend on the product, brand, etc. Additionally, the severity of the infestation and flea resistance to products can influence the speed and effectiveness of the treatment. It’s always advisable to consult with your veterinarian to determine the best treatment strategy for your pet and your specific situation.


Fleas do not tend to disappear on their own permanently. While some seasonal fluctuations or changes in environmental conditions may influence their activity, fleas are resilient and can persist in an environment if measures are not taken to control them. Here are some reasons why fleas may seem to decrease or increase but not disappear completely:

Why do I still find live fleas after treatment?

Flea Life Cycle: Fleas go through different developmental stages, including egg, larva, pupa, and adult. Adult fleas represent only a small part of the total population. Most fleas are found in the egg or larval stages in the environment. Even if it appears that adult fleas have decreased, the younger stages may be present and can redevelop.

Persistence in the Environment: Flea larvae can remain dormant in the environment for weeks or even months, waiting for optimal conditions to hatch and become adult fleas. This means that, even if you treat your pet and clean the environment, fleas can emerge again.

Reinfestation: Fleas can be transported by other animals, such as rodents or neighboring pets. Reinfestation can occur even after treating your pet and cleaning the environment if continuous preventive measures are not taken.

Resistance to Products: In some cases, fleas can develop resistance to certain anti-flea products, making eradication challenging. Changing the type of treatment or consulting with the veterinarian may be necessary in cases of resistance.

These aspects should be taken into account when dealing with fleas on your dog.



Relieving flea bites in dogs is important to reduce discomfort and prevent possible complications. Here are some tips for relieving flea bites in dogs:

Bathing the dog: A bath with a mild dog shampoo can help remove fleas from the coat and soothe skin irritation. Use warm water and make sure to dry the dog thoroughly after the bath.

Cold compresses: Apply cold compresses to the bitten areas. This can help reduce swelling and alleviate itching. Be sure not to use ice directly on the skin.

Soothing lotions or creams: Consult with your veterinarian about using lotions or creams specifically designed for dogs. Some may contain ingredients like aloe vera or calamine that can help alleviate irritation.

Use of topical corticosteroids: In cases of severe bites, your veterinarian might recommend the use of creams or gels with corticosteroids to reduce inflammation and itching. However, this should be done under veterinary supervision.

Avoid excessive scratching: Although it can be challenging, try to prevent your dog from excessively scratching the bites. Scratching can worsen irritation and lead to secondary infections. In extreme cases, the veterinarian may advise the use of an Elizabethan collar or cone. Distracting your dog with a bone or activities they enjoy is another strategy to prevent constant scratching.

Consult with the veterinarian: If the bites are severe or if your dog shows signs of discomfort, such as loss of appetite or lethargy, it is important to consult with your veterinarian. They may prescribe additional medications or provide specific guidance for bite relief.

Remember that each dog is unique, and what works for one may not be suitable for another. Always consult with your veterinarian before using new products or approaches, especially if your dog has pre-existing medical conditions.

We hope to have helped you learn the best strategies to get rid of fleas on your dog. To read more articles like this, visit our home.