Skin Disease Due to Food Allergies in Dogs


Dog skin allergic reactions are the most typical kind of skin issues in dogs. You can’t constantly avoid the cause but you can manage and manage the symptoms at home.

Dermatologic Food Reactions in Dogs

Dermatologic food reactions are non-seasonal reactions which occur following consumption of several allergy triggering compounds in an animal’s food. The physical reaction is frequently extreme itching, with resultant excessive scratching at the skin.

While the pathogenesis of these reactions is not totally understood, immediate reactions and delayed responses to food are believed to be due to a hypersensitive immune action. On the other hand, food intolerance is a non-immunologic idiosyncratic reaction due to the metabolic, toxic or pharmacologic impacts of the angering active ingredients. Since it is difficult to distinguish between immunologic and idiosyncratic responses, any negative response to food is typically described as a negative food reaction.

Symptoms and Types

  • Pyotraumatic dermatitis — infection of the skin wounds due to scratching exceedingly, and bacteria entering the injuries.
  • Malassezia dermatitis (fungal skin infections), pyoderma (bacterial skin infections), and otitis externa (swelling of the external ear).
  • Non-seasonal itchiness of any body location
  • Vomiting
  • Huge wheals (extended marks) on the skin.
  • Poor action to anti-inflammatory dosages of glucocorticoids typically recommends food hypersensitivity
  • Skin plaques — broad, raised flat areas on the skin.
  • Hives — swollen or swollen bumps on the skin.
  • Leathery, thick, bark-like skin.
  • Excessive gut sounds, passing of gas, and regular bowel movements
  • Erythema — inflammation of the skin.
  • Crusts– dried serum or pus on the surface of a ruptured blister or pustule.
  • Hyperpigmentation — darkening of the skin.
  • Abrasions/sores on the skin due to scratching.
  • Self-induced baldness due to scratching.
  • Pustules — pus-containing raised skin swellings.
  • Scale — flakes or plates of dead skin on the skin’s surface area.
  • Diarrhea

Causes of Skin Allergies in Dogs

Food allergy

  • Immune-mediated reactions:¬†outcome of the ingestion and subsequent discussion of one or more glycoproteins (allergens) either prior to or after digestion; sensitization may take place as the food passes into the intestinal tract, after the substance is taken in, or both.
  • Non-immune (food intolerance) reactions: outcome of consumption of foods with high levels of histamine (an antigen known to cause immune hypersensitivity) or compounds that induce histamine either straight or through histamine-releasing aspects.
  • It is hypothesized that in juvenile animals, digestive parasites or digestive tract infections might cause damage to the digestive mucosa, leading to the irregular absorption of irritants and subsequent sensitization to some components.


Your vet will carry out a total physical exam on your dog, consisting of a dermatological examination. Non-food causes of dermatologic disease need to be ruled out. Your veterinarian will buy a blood chemical profile, a complete blood count, a urinalysis and an electrolyte panel to eliminate other causes of disease. You will need to offer a thorough history of your dog’s health, beginning of symptoms, and possible events that may have preceded this condition, particularly regarding any changes in diet, and any new foods contributed to your dog’s diet, even if temporary.

Food elimination diets are encouraged for dogs believed to be suffering from unfavorable food reactions. These diets generally include one protein source and one carb source to which the dog has had limited or no previous direct exposure to. A scientific improvement may be viewed as soon as four weeks into the new diet, and optimum alleviation of clinical signs may be viewed as late as thirteen weeks into the food removal diet.

If your dog enhances on the removal diet, a challenge needs to be carried out to verify that the initial diet was the cause of disease and to identify what ingredient in the original diet triggered the adverse response.

Difficulty: feed your dog with the initial diet. A return of the signs confirms that something in the diet is causing the signs. The difficulty duration must last until the signs return however not than ten days.

If the obstacle confirms the existence of an adverse food response, the next action is to carry out a justification diet trial: returning to the removal diet, start by adding a single component to the diet. After waiting an enough amount of time for the component to prove either agreeable or negative, if there is no physical reaction, carry on to adding the next component to your dog’s diet. The provocation duration for each new active ingredient should last up to 10 days, less if signs establish faster (dogs normally develop signs within 1– 2 days). Need to symptoms of an unfavorable reaction establish, cease the last included component and await the symptoms to decrease prior to progressing to the next component.

The test ingredients for the justification trials must include a complete range of meats (beef, chicken, fish, pork, and lamb), a full range of grains (corn, wheat, soybean, and rice), eggs, and dairy items. The results of these trials will guide your selection of commercial foods, based on those that do not consist of the angering compound( s).

Dog’s Skin Treatment Caused by Food Allergy

Prevent any food substances that triggered the clinical signs to return during the provocation phase of the diagnosis. Antibiotics or antifungal medications may be recommended by your veterinarian if secondary pyodermas or Malassezia infections are occurring.

Living and Management

Treats, chewable toys, vitamins, and other chewable medications (e.g., heartworm preventive) that might consist of active ingredients from your dog’s previous diet should be eliminated. Make certain to read all component labels carefully. If your dog spends time outdoors you will have to create a confined area to avoid foraging and hunting, which can change the test diet. All member of the family will need to be warned of the test protocol and need to help keep the test diet tidy and free of other food sources. Cooperation is essential to successful treatment of this disorder.


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