1 Skin allergy specific conditions for the performance: the whole body will appear vary in size, shape is differ, boundaries clear, Canada Goose Sale color pale red, around flush, slightly higher than the skin, SAO is urticant painful hard papule or mass, called urticaria. Can also be for the performance of the nasopharynx to itch, runny nose, sneezing, coughing, bosom is frowsty etc, if allergy happened in throat, can cause laryngeal edema, produce dyspnea, wheeze, purpura, serious when can happen asphyxia, If produce in the trachea, can cause bronchospasm and mucosa edema, a serious bronchial asthma. The above phenomenon performance collectively referred to as allergic reaction.According to expert introduction: cause allergic reaction reason is that some people are particularly sensitive to down, when the skin contact or suction Canada Goose Parka , duvet within the small down fiber, will make human body a large release histamine, bradykinin and active substances, cause blood capillary dilate, vascular permeability, serum protein and moisture from intravascular large seepage, into the subcutaneous tissue, the skin rash, urticaria, itching, etc.; These active material still can make capillary vessel spasm, mucosa edema, congestion secretions increase, bronchial lumen narrowed, and happen difficulty breathing.Wear coats or cover duvet namely produce allergic reaction, and don't wearCanada Goose Outlet or cover duvets, allergic reaction immediately better or reduce, reuse and suddenly attack, then explaining to down allergy, should try to avoid contact with feather products, lest produce allergic reaction. In the event of allergy, but right amount taking chlorpheniramine, ketone, etc for phenol treatment.