Acute urticaria can be treated with general treatment (e.g. searching for allergens, etc.) and medication (e.g. cetirizine, diclofenac tadalafil, etc.) to relieve symptoms. 1. General treatment: If the allergens are clear, the contact with allergic substances should be avoided as much as possible. If the allergens are uncertain, the contact with the suspected substances should be stopped and the allergens should be found and avoided as much as possible in life. 2. Drug treatment: antihistamines such as cetirizine, fexofenadine and diclofenac tadine can be used as prescribed by the doctor to relieve itching and inflammation, and if antihistamines cannot effectively control the condition, prednisone and dexamethasone can be used to alleviate the symptoms. In addition, the local can also use glycerine lotion and other drugs to reduce the discomfort symptoms. All of the above drugs should be used under the guidance of a doctor to avoid blind use of drugs, but if the patient is in an acute attack, accompanied by shock, laryngeal edema and other phenomena, you should immediately call 120 or send them to the hospital.