![]() We therefore conclude that food allergy is an uncommon cause of chronic CU. However, when the open OFC tests were conducted in 102 participants with self-reported food hypersensitivity or raised levels of food-specific IgE, only four participants showed a positive reaction to pork (n=3) or crab (n=1).Īlthough some participants claimed to have a history of CU related to food intake, when an open OFC test was conducted, few of them had positive results. (3) Rosacea usually appears as redness on the face where swollen blood vessels become visible. We found that 73 participants (20.9%) had elevated levels of food-specific IgE, with pork (n=30), wheat (n=25), and beef (n=23) being the most common. Hives may change shape and move around the body, whereas a bug bite stays in the same place. Pork (n=16) was the main food mentioned, followed by beef (n=7), shrimp (n=6), and mackerel (n=6). A group of healthy subjects was included to compare the dietary habits and the results of the diagnostic tests. Skin prick test and sIgE serum were done for most frequently reported foods by patients. Of 350 participants, 46 (13.1%) claimed to have experienced previous food hypersensitivity. Methodology: Patients were interrogated about their clinical history of urticaria. Based on history and laboratory results, open oral food challenge (OFC) tests were performed. ![]() Blood samples were taken from 350 patients to measure food allergen-specific IgE. Korean patients with CU were assessed for a previous history of food allergy that caused symptoms of CU. The aim of this study was to evaluate the association between food allergy and CU. Possible causes in some cases include food, but the role of allergy to food antigens in patients with CU remains controversial. Urticaria or hives are sometimes referred to as welts or wheals surrounded by. The important symptom of urticaria is itch (pruritus). The etiology of chronic urticaria (CU) remains unknown in most patients. Urticaria also called hives, is a skin reaction usually caused by allergy or from stress, characterized by swelling, bumps, itching and burning that appear and disappear anywhere on the body 1).
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