How to: Spot an allergic reaction in your pet

Allergic reactions in pets can be caused by a variety of environmental or dietary allergens, such as pollen, dust, mold, certain foods, or insect bites.

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Apr 23, 2023

When a pet's immune system recognizes an allergen as a threat, it produces antibodies and histamines that cause inflammation and other symptoms.

It's important to identify the specific allergen that's causing the reaction in your pet, as this will help your veterinarian determine the best course of treatment.

Here are some signs that your pet might be having an allergic reaction:

Skin irritation

One of the most common signs of an allergic reaction in pets is skin irritation. You may notice redness, swelling, itchiness, or hives on your pet's skin, which can be localized or spread throughout the body. Pets may scratch, bite or lick at their skin excessively, which can lead to secondary infections, hair loss, or hot spots.

Respiratory problems

Sneezing, coughing, wheezing, or difficulty breathing may be caused by an allergic reaction to airborne allergens, such as pollen or dust, or a bite or sting from an insect. If you notice severe or persistent symptoms, it's important to contact your Parker & Ace vet team immediately. In some cases, an allergic reaction can cause a life-threatening condition called anaphylaxis, which can cause collapse, shock, and respiratory failure.

Digestive issues

Digestive issues, such as vomiting, diarrhea, and loss of appetite, can also be caused by an allergic reaction in pets. These symptoms can be especially concerning if your pet becomes dehydrated or loses weight.

Changes in behavior

If your pet becomes irritable, lethargic, or restless, it may be a sign that they are experiencing discomfort or pain.

If you notice any signs of an allergic reaction in your pet, it's important to seek veterinary care as soon as possible. Your Parker & Ace vet team can send out a blood test to help identify the specific allergen(s) causing adverse reactions, and can recommend treatment options to help your pet feel better.

A targeted treatment would entail a vaccine based on the specific allergens, which can help desensitize your companion to reactions. Generalized treatments may include medications, such as antihistamines or steroids, or changes in diet or environment to avoid the allergen. In severe cases, your pet may require emergency care, such as oxygen therapy or intravenous fluids.

Noticed these symptoms? Get in touch with your Parker & Ace vet today.