A case of contact urticaria induced by the underwear using cow milk protein containing rayon

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  • 牛乳含有繊維を使用した衣服により接触蕁麻疹を呈した牛乳アレルギーの男児例

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<p>The prevalence of childhood food allergy is increasing, affecting the quality of life of food-allergic patients. Cow milk, a major allergen, accounts for about 20% of all food allergies in Japan. Particularly, it is common in infants, who usually experience the first episode before one year of age. We hereby report a case where the patient instantly developed a contact urticaria after wearing underwear made of milk-containing rayon fiber. The diagnosis was confirmed after carrying out a patch test of the underwear concerned, which showed a positive result for immediate allergic reaction, and an elution test of milk-containing fibers, which revealed casein elutes. Recently, various food proteins have been added to other products, including clothing and cosmetics, which may cause allergic symptoms. Thus, caution is required.</p>

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