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There are many symptoms of urticaria. 1, patients show urticaria after skin itching symptoms, but also show red or skin color wheals. 2, wheals are not the same size and shape, and attack time is not fixed. 3, wheals will appear white, skin color, while a few patients will show edema symptoms. Some patients may also show other symptoms after showing urticaria, such as nausea, vomiting, diarrhea, etc. In severe cases, it may also be accompanied by chest tightness, pale complexion, etc. After showing the disease, it is recommended to go to the hospital for examination in time to prevent serious consequences. Timely medication and conditioning treatment are needed.