All dog owners should know how to recognize dog allergy symptoms. The same substances that trigger a hypersensitive response in humans may also affect dogs. Reports of these reactions in both humans and animals have increased. The substances are in themselves harmless. But, to certain persons or animals they are allergens.
Allergies do not occur with the initial exposure. They develop over time. In some cases, it is with the first exposure. The immune system builds antibodies to oppose the next encounter with the offending agent. With the next contact, white blood cells, known as mast cells, attack the allergen. A substance called histamine is released, and symptoms occur.
The skin disorders of allergic response are quite miserable to dogs. Rashes, redness, and bumps result in intense itching. In attempts to obtain relief, the animal scratches, causing abrasions. The skin breaks often become infected, causing more discomfort.
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