How to Recognize Allergies in Dogs

by Karin Napier Google
    Potential allergens are everywhere.

    Potential allergens are everywhere.

    Visage/Stockbyte/Getty Images

    Scads of allergens exist in a dog’s internal and external environments alike, and any of them can induce an allergic reaction. In the outdoors, exposure to certain trees, grass, weed pollens or parasites may irritate the canine body into an allergic state. Inside the home, environmental and dietary allergens might include dust or dust mites, fabrics, rubber or plastic, foods and food additives.

    How Allergic Reactions Occur

    Immunoglobulin E proteins are produced by the canine immune system through inhalation, ingestion or direct contact when the skin releases chemicals known as histamines. When a dog experiences an allergic reaction to some outside stimulant and his body begins releasing histamines into his skin, he will experience a tingling sensation throughout his body.

    Physical Reactions

    Once a dog feels the histamines tingling through his skin, the natural reaction is to scratch the itch. He will do so by chewing on his feet, scratching his body with his hind feet or rubbing his face on the carpet.

    Visual Symptoms

    Visual skin symptoms often result in patchy hair loss, mutilated skin or crusted dry skin. In extreme cases, where dogs scratch until a lesions form, a bacterial infection may result. Ear symptoms may result if the ear glands overproduce wax in response to an allergen.

    Photo Credits

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    About the Author

    Karin Napier contributes to various online publications, specializing in topics related to canines, equines and business. She holds career diplomas in bridal consulting, business management and accounting essentials. Napier is a Sunday school teacher, a certified veterinary assistant and current student pursuing certification in natural health care for pets.

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