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Nikolas

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Nikolas

Created page with "== Urticaria == Urticaria (commonly known as “hives”) is a condition where erythematous, oedematous and pruritic plaques called ''wheals'' arise on the skin. It can be caused by a multitude of factors, like allergens, insect bites, cold, stress, pressure and even normal water. Pathogenesis: A type I hypersensitivity reaction against antigens like pollen, food or drugs causes mast cells in the skin to degranulate. This causes the small arteries in the dermis to becom..."