1, the wind mass often spreads all over the body, but it can also be limited. It will fade after a few hours, generally no more than 24 hours, leaving no trace after fading. With the development of urticaria, new wind masses appear one after another, one after another, sometimes repeated many times a day. There is severe itching, burning or tingling, and very few patients have itching. Severe cases may be accompanied by symptoms of anaphylactic shock such as palpitation, irritability, nausea, vomiting, and even decreased blood pressure.
2. The skin suddenly itches, followed by wheal, bright red or pale skin color, accompanied by edematous erythema; The size and shape of the air mass caused by urticaria symptoms are different, some of which can reach 10CM or more in diameter, and sometimes blisters can appear on the surface of the air mass, which can be arranged in time and merged with each other to form irregular shapes such as rings and topographic maps.
3. Nausea, vomiting, diarrhea and abdominal pain may occur when the digestive tract is involved; Involvement of larynx and bronchus can lead to laryngeal edema, suffocation, shortness of breath, chest tightness, dyspnea and even suffocation. If accompanied by high fever, chills, rapid pulse, leukocytosis and other systemic symptoms, it should be considered that it is caused by acute infection factors.