Most Common Allergies In Dogs | (It’s Important To Know)

What are the most common allergies in dogs?  It’s an important question.  Allergies are caused by reactions to the immune system of the body.

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Allergies in Dogs – Do You Know What They Are:

There are a number of different kinds of allergies in dogs. Food allergies, skin allergies, and even environmental allergies all present unique challenges for both dogs and their human companions. Sometimes, the symptoms of these various types of allergies can even overlap.

As a caring and loving pet owner, it is up to you to be aware of your dog’s behavior and identify any symptoms that may indicate something more serious.

It is important that you and your dog are fully aware of the causes of the allergies. This will allow you to take proper measures to avoid further health issues.


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Common allergies in dogs range from food, skin, and flea allergies – ( Blue Cross )


Common Signs and Symptoms:

common allergies in dogs

Some of the more common signs that may indicate that your dog is suffering from an allergy include constant itching, constant licking, and constant scratching. In addition coughing or wheezing, vomiting, diarrhea, and more.

Some of these symptoms may overlap, but if there are consistent signs such as extreme discomfort, constant licking, and constant scratching, you should suspect an allergy.

If your dog has one or more of these signs, you should take him to the veterinarian as soon as possible for a proper diagnosis.

Keep in mind that allergies may not always manifest in a directly physical way. In some cases, it can take weeks or months for symptoms to show up before you can begin treatment.


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The most common symptom associated with allergies in a dog is itching of the skin. This can be either in one area ( localized ) or all over the body ( generalized ). – ( Source – VCA Animal Hospitals )


Other Symptoms Of Allergies:

Other symptoms include a runny nose, coughing, and wheezing. In addition, there are skin irritations plus red, itchy, and watery eyes. The good news is that there are many types of food and treats available in the market that can help alleviate your pet’s allergies.

One of the more common forms of allergies in dogs is atopic dermatitis. With this kind of allergy, the skin develops a rash as it becomes inflamed. The most common symptom is excessive itching, which can be accompanied by redness, swelling, and blisters.

In more severe cases, oozing from the ears can happen. This allergy is more commonly seen in older dogs, but it can also occur in younger dogs and even in humans. Allergic reactions to dust or fleas can also bring on the same symptoms as allergies to certain foods, but there are more traditional symptoms to look out for as well.


Food Allergies In Dogs:

most common allergies in dogs

Dog food allergies are also known as food allergies. However, not all dogs have the same allergic reactions to certain kinds of food.

In general, the most common food that causes allergies is wheat, corn, soy, egg, and milk. When you notice the symptoms of your dogs’ allergy to these four kinds of food, consult your vet for advice.


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Your vet will usually recommend a special food to feed your pet for between six and 12 weeks. During this time, they must have no other food at all and this includes treats and dental chews. – ( Source – )


Additional Factors:

They can also be caused by environmental factors, like dust and flea infestation. They occur when the dog comes into contact with the allergen, and in some cases, the dog will get an itchy skin rash as a result. There are different causes for this symptom.

It could be because of a food or ingredient that the dog has been sensitive to in the past. Another reason is that the skin lacks the proper elements for proper protection. Like humans, dogs don’t have the special collagen that protects their skin, so it can be easily damaged and irritated.

Food allergies in dogs, on the other hand, are caused by the body’s reaction to the protein in the food. If the pet has eaten the allergen, the body will release antibodies against it, which will cause the skin to develop rashes and swell up. Symptoms of this kind of food sensitivity include itchy skin, excessive scratching, and hair loss. This can easily be treated by changing the food.


Flea Infestation In Dogs:

Most Common Allergies In Dogs

Another common cause of allergies in canines is flea infestation. If your pet has dander and a constant itching sensation after coming into contact with the allergen, it probably is allergic to flea saliva.

The saliva contains an enzyme that the body uses to digest the protein in the flea’s fur. To get rid of the enzymes, the pet needs to be properly washed, since it can only be done through gentle shampooing with a hypoallergenic shampoo.


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Flea Infestation in Dogs Fleas is parasitic insects that feed off the blood of their hosts. There are approximately 2,200 types of fleas worldwide. – ( )



Inhalant Allergy In Dogs:

Another type of allergy in dogs is inhalant allergy symptoms. If your pet comes into contact with the allergen, it can suffer from itchy eyes, a stuffy nose, coughing, and wheezing. This is caused by the irritation of the air sacs in the lungs. To prevent this, it’s best to keep your pet away from substances that can irritate the skin, like detergents, soaps, chemicals, and pollen.


Treatments Of Allergies In Dogs:

Topical skin medications are also used to treat top allergies in dogs. They contain ingredients that address the skin’s reaction to allergens. There are mainly three medications for this, namely:

  • corticosteroids
  • antimicrobials
  • mineral oil.

Unfortunately, since the skin is easy to damage when it’s scratched, it’s better to avoid the use of topical medications to treat allergies in dogs. The problem lies in the possibility of the medicine being absorbed by the dog’s skin. This could cause serious damage.

Supplements can also be used to treat allergies in dogs. However, keep in mind that these are just food substitutes and not actual food. They can provide some temporary relief from the symptoms, but they cannot give your dog any long-term health benefits.

To make sure that your pet doesn’t develop any allergies while taking the medication, you need to monitor what it is being fed. We do hope that this information about Common Allergies In Dogs has helped you in some way.


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The best way to treat an allergy is avoidance of the cause and allergen.  – ( Source – American Kennel Club – )


Best Dog Food For Dogs With Allergies:

Best Dog Food For Sensitive Stomachs:

Best Skin and Coat Supplements For Dogs:


Disclaimer:  All material on this website is provided for your information only. It may not be construed as medical advice. No action or inaction should be taken based solely on the contents of this information. Instead, readers should consult appropriate health professionals or veterinarians on any matter relating to their pet’s health and well-being. The publisher is not responsible for errors or omissions.

4 thoughts on “Most Common Allergies In Dogs | (It’s Important To Know)”

  1. Thank you for this article, I own a pittie and she always seems to be scratching her ears, I do clean them as often as I can to try and kill whatever parasites might be present, I have not considered the fact of allergies, or even considered that any of the foods that she eats might be causing this issue. I will definitely look into some supplements as you have mentioned to try and solve the issue at hand. Thanks once again

    • Jean

      Sincere thanks for taking the time to post. Glad you found information that can help you with health issues relating to your pet.


  2. We must take care of our dogs and pay attention to their behaviors. Allergies can cause problems but once they are determined our pets will feel better. It sounds like the same foods that cause allergies in people can also cause allergies in our pets. These are all great points to know when taking care of our dogs. 

    Thanks for sharing the tip on helping a dog with flea infestation. Two gentle shampoos with a hypoallergenic shampoo.

    • Sharon

      Thank you kindly for your post. I am so glad that you found the information of use. Positive posts like yours makes all the hard work worthwhile


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