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Dogs are susceptible to allergies much like their human companions. Most allergies occur in dogs over 6 months old. A dog that is repeatedly exposed to a particular allergen becomes sensitized to it, and the immune system overreacts to a subsequent exposure, most commonly manifesting in the form of skin irritation. [1]
Hives and other allergic reactions may develop after taking medication, for instance. Other medications cause rashes as a known side effect or as a reaction to sunlight, Johns Hopkins Medicine says.
Hives, also known as urticaria, is a kind of skin rash with red and/or flesh-colored, raised, itchy bumps. [1] Hives may burn or sting. [2] The patches of rash may appear on different body parts, [2] with variable duration from minutes to days, and do not leave any long-lasting skin change. [2]
Hives are quite common, though, so it’s a good idea to get familiar with them. Hives, or urticaria, are itchy pink welts that could appear anywhere on your skin. Some are bumps as small as a ...
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Skin allergies frequently cause rashes, or swelling and inflammation within the skin, in what is known as a "weal and flare" reaction characteristic of hives and angioedema. [30] With insect stings, a large local reaction may occur in the form of an area of skin redness greater than 10 cm in size that can last one to two days. [31]