Common Types of Dog Allergies: Signs, Symptoms and Treatment

Written by: Karuna Subbiah

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Time to read 10 min

Have you ever come across someone talking about their dog suffering from allergies? 

Has your vet ever come to the conclusion that your dog might be allergic to something?


If you answered yes to any of these questions, you've likely come to understand that allergies in dogs are more complex than we might hope. To begin with, there exist various kinds of allergies that could potentially be responsible for the symptoms your dog is experiencing.

Why Identifying Dog Allergies Matter

First and foremost, understanding dog allergies is essential because it directly impacts your pet's quality of life. Dogs can't express their discomfort in words, so it's our responsibility as pet parents to recognize the signs of distress and discomfort in them. 


Allergies in dogs can show in various ways, including:

  • Skin issues
  • Gastrointestinal problems
  • Respiratory distress

Recognizing these signs promptly can mean the difference between a happy, healthy dog and one who's suffering.

A Variety of Allergens: Agents that Cause Allergic Reactions

Just like humans, dogs can be allergic to a wide range of allergens. From dog dander allergy to reactions caused by specific foods, it's crucial to understand the potential triggers. 


Some dogs might be allergic to common environmental factors like pollendust mites, or mould (yes, dogs can get animal dander allergies!). Others may have food allergies, leading to various symptoms.


By educating yourself about these allergens, you become better equipped to provide your pet with a safe and comfortable environment. Whether it's recognizing pet allergy symptoms, knowing when your dog needs a change in diet, or understanding the effects of dog skin allergies, your understanding can make a world of difference in your pet's life.


In this blog, we'll explore the different types of allergies that can affect dogs, including food allergies, environmental allergies, and flea allergies. 


We'll discuss the symptoms associated with each type, how to identify them, and crucially, how to treat and manage these allergies to ensure your dog leads a happy, healthy, and allergy-free life.


Understanding and recognizing common dog allergies is a critical step in ensuring your dog's well-being and providing them with the love and care they deserve.

Types of Dog Allergies

There are mainly three types of allergies that affect dogs: Food Allergies, Environmental Allergies, and Flea Allergies. Each of these allergies comes with its own set of symptoms and triggers.

1. Food Allergies in Dogs

Food allergies in dogs can be a confusing and distressing issue for both pets and their parents. These allergies differ from food intolerances


The main difference between the 2 is that food allergy involves an immune system response to certain food items. If you suspect your dog might be suffering with food allergies, it's essential to understand the basics.

Defining Food Allergies vs. Food Intolerances

Food allergies are hypersensitive reactions of the immune system to certain proteins in food. On the other hand, food intolerance mostly involves symptoms like difficulty in digesting certain ingredients, leading to gastrointestinal problems. 


Allergies are often visible through skin and coat issues, while intolerances more commonly result in tummy troubles.

Symptoms of Food Allergies In Dogs to Look Out

Food allergies are often observable through skin problems. If your dog is constantly scratching, licking, or biting their paws, face, or ears, it could be a sign of a food allergy. 


Digestive issues like diarrhoea and vomiting can also occur. In severe cases, dogs might develop ear infections, hot spots, or lose patches of fur.

Management of Food Allergies in Dogs

If you suspect your dog has a food allergy, consult a vet. They can help you diagnose the issue through methods like elimination diets or allergy tests.


 Elimination diets involve gradually introducing new, hypoallergenic foods while monitoring your dog's reactions. Allergy tests can pinpoint specific allergens.

2. Environmental Allergies in Dogs

Environmental allergies, also known as atopic dermatitis, are allergic reactions to substances found in the environment. 


These allergens can include:

  • Pollen
  • Dust mites
  • Mould spores, and more. 

When your dog comes into contact with these allergens, it can trigger an immune reaction, leading to uncomfortable symptoms.

Recognizing Symptoms of Environmental Allergies in Dogs

Environmental allergies in dogs are often evident as itching, redness, and ear infections. You may notice your dog scratching excessively, licking their paws, or rubbing their face against furniture or carpets. 


Ear infections can also occur due to allergies, leading to discomfort and head shaking.

Minimising Environmental Allergies for Dogs

While it's challenging to completely eliminate environmental allergens, there are steps you can take to minimize your dog's exposure:


  1. Regular Cleaning: Keep your home clean by vacuuming carpets, washing bedding, and using air purifiers with HEPA filters to reduce airborne allergens.
  2. Limit Outdoor Exposure: During high pollen seasons, try to limit outdoor activities, especially during windy days when allergen spread is higher.
  3. Bathing: Regular baths with a hypoallergenic dog shampoo can help remove allergens from your dog's coat.

3. Flea Allergies in Dogs

Flea allergies are a common problem for dogs. They occur when a dog's skin is hypersensitive to flea saliva. Even a single flea bite can trigger an allergic reaction, leading to intense itching, redness, and skin inflammation.

Recognizing the Symptoms of Flea Allergies

The symptoms of flea allergies can be distressing for your dog. You may notice them constantly scratching or biting their skin, especially around the tail and hindquarters

Red and inflamed skin, hair loss, and even open sores can develop as a result of flea allergy dermatitis.

Flea Allergies Prevention for Dogs

Prevention is crucial when it comes to flea allergies. Here are some steps you can take to protect your dog:


  1. Regular Grooming: Brush and inspect your dog's coat regularly, especially during flea season.
  2. Flea Preventatives: Use vet-recommended flea preventatives. These can include spot-on treatmentsoral medications, or flea collars.
  3. Clean Living Space: Keep your home clean and use flea control products on carpets, upholstery, and bedding. Vacuuming is essential to remove flea eggs and larvae.

Diagnosing and Treating Allergies in Your Dog

If you've noticed your dog scratching continuously, developing skin irritations, or experiencing digestive problems, they might be showing signs of allergies. While it's natural for pet parents to be concerned about their dog's well-being, diagnosing and treating dog allergies can be a complex but manageable journey.


In this section, we'll explore the critical steps to identify and address these allergies and why consulting a veterinarian is crucial.

Consulting a Vet: The First Step to Allergy Relief in Dogs

As responsible pet parents, it's essential to recognize that diagnosing and treating dog allergies isn't a DIY project. Consulting a vet is the first and most crucial step when you suspect your dog is suffering from allergies. Your vet is your partner in understanding and addressing your dog's specific allergy issues.

Diagnosing Dog Allergies: A Comprehensive Approach

When it comes to diagnosing allergies in dogs, a thorough approach is essential. Here's how the process of diagnosis by a vet goes:


1. Physical Exams: Your vet will begin with a thorough physical examination of your dog. 

This includes checking their skin, coat, ears, and overall health. Physical exams help identify visible signs of allergies, such as skin irritations, hair loss, or redness.


2. Medical History: You'll provide your vet with your dog's medical history, including any recent changes in their environment, diet, or behaviour. This information can be very important in pinpointing potential allergy triggers.


3. Allergy Testing: In some cases, your vet may recommend allergy testing. This can include blood tests or skin tests to identify specific allergens that might be causing your dog's symptoms. 


These tests help tailor the treatment plan to your dog's unique needs.

Diagnosing and Treating Each Type of Dog Allergy

There are three primary types of dog allergies: Food Allergies, Environmental Allergies, and Flea Allergies. Here's how each type is diagnosed and treated:

Dog Food Allergies:

Diagnosis: To diagnose food allergies, your vet may recommend an elimination diet. This involves feeding your dog a specially selected diet with certain protein and carbohydrate sources to see if their symptoms improve.


Treatment: If food allergies are confirmed, your vet will prescribe a hypoallergenic diet tailored to your dog's needs. Avoid feeding your dog table scraps or treats that could contain allergenic ingredients.

Environmental Allergies:

Diagnosis: Skin tests or blood tests can identify specific environmental allergens affecting your dog. Your vet will consider your dog's history and physical exam findings.


Treatment: Treatment options for environmental allergies often include antihistaminescorticosteroids, or immunotherapy (allergy shots). Regular flea control is also essential as flea bites can increase environmental allergies.

Flea Allergies:

Diagnosis: Flea allergies are usually diagnosed based on clinical signs and history. Your vet will examine your dog for fleas or flea dirt and ask about their recent exposure to fleas.


Treatment: Preventing flea infestations is the key to managing flea allergies. Your vet may recommend topical or oral flea preventatives. 


Additionally, your dog's symptoms may be treated with medications to relieve itching and inflammation.

Addressing the Underlying Cause of Allergies

While treating the symptoms of allergies is vital, addressing the underlying cause is equally essential. Your vet will work with you to identify and minimize your dog's exposure to allergens. This may involve changes in diet, lifestyle, or the environment.

The Dangers of Self-Medicating

Pet parents often want to provide quick relief for their dogs, but self-medicating can be risky. Human medications and over-the-counter remedies may not be safe for dogs and can lead to adverse effects. Consulting a vet ensures that your dog receives safe and effective treatment tailored to their needs.

Effective Ways to Prevent Allergies Among Dogs

Take proactive steps to prevent allergies in dogs, giving them the best chance at a comfortable and happy life.

1. Maintain a Healthy Diet

Your dog's diet plays a pivotal role in their overall health. Opt for high-quality dog food that suits their specific needs. Look for options free from common allergens, like grains or artificial additives. Consult your vet to determine the best diet for your dog, addressing any existing food allergies.

2. Regular Grooming

Regular grooming is a pillar of allergy prevention. Brush your dog's coat frequently to remove loose fur and prevent the buildup of allergenic dander. Grooming isn't just about appearance; it's about maintaining a clean and healthy coat that minimises allergen exposure.

3. Use Hypoallergenic Products

Consider using hypoallergenic grooming products and shampoos. These specially formulated items are designed to be gentle on your dog's skin while reducing the risk of allergic reactions. Always choose products that are safe for pets and recommended by your vet.

4. Opt for Appropriate Outdoor Activities

When enjoying outdoor activities with your dog, select locations and times that reduce exposure to allergens. Avoid areas with high pollen levels during peak seasons. After outdoor excursions, wipe your dog's paws and coat with dog wipes to remove potential allergens they may have picked up.

Summing It Up

In conclusion, being a responsible pet parent involves not only recognizing common dog allergies but also taking steps to prevent them. By maintaining a healthy diet, practising regular grooming, and using hypoallergenic products, you can significantly reduce the risk of allergies in your dog. 


Additionally, minimising exposure to environmental allergens and providing a balanced diet tailored to your dog's needs can contribute to their overall health and happiness.


Remember that every dog is unique, and it's essential to consult your vet for personalised advice on allergy prevention and treatment. By being proactive and attentive to your dog's needs, you can ensure they lead a joyful and allergy-free life.

Frequently Asked Questions (FAQs)

1. Do dog allergies pose risks?

Yes, dog allergies can be harmful. They often lead to symptoms like sneezing, itching, and watery eyes in allergic individuals. In severe cases, they can trigger asthma attacks or worsen existing respiratory conditions. Additionally, long-term exposure to allergens may cause chronic health issues.

2. Is there a cure for dog allergies?

No, dog allergies cannot be completely cured. They can be managed through various treatments and lifestyle changes. These measures include allergen avoidance, medications to control symptoms, and allergy shots (immunotherapy) for long-term relief. However, complete elimination of dog allergies is typically not achievable, and ongoing management is necessary.

3. What's the duration of pet allergy symptoms?

The duration of pet allergy symptoms can vary widely depending on individual sensitivities and exposure levels. In some cases, symptoms may last for a short period, such as a few hours to a day, after exposure to allergens like pet dander. However, for individuals with severe allergies or prolonged exposure, symptoms may persist for several days or even longer. It's essential to consult a healthcare professional for proper diagnosis and management of pet allergies.

4. Which allergy is most prevalent in dogs?

The most common allergy in dogs is flea allergy dermatitis. This condition occurs when dogs are allergic to proteins in flea saliva. When fleas bite, they inject these proteins, triggering allergic reactions in sensitive dogs. Symptoms include itching, redness, and discomfort, making flea control crucial for canine health.


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