Urticaria and urticarial vasculitis are both mainly manifested as wind clouds, but they are different in terms of etiology, lesion characteristics, accompanying symptoms, and treatment methods. 1. Etiology: urticaria is an allergic disease, certain foods, drugs, physical stimuli, infections, etc. may cause allergic reactions leading to urticaria. While urticarial vasculitis is induced by infections or drugs, and is related to the deposition of immune complexes. Urticaria vasculitis lesions last more than 24 hours, with inflammation and hyperpigmentation. 3. Accompanying symptoms: Urticaria accompanied by symptoms of itching. Urticarial vasculitis is often painful, accompanied by arthralgia, hypocomplementemia and abdominal discomfort. 4. Treatment: Urticaria should be treated with oral antihistamines, such as loratadine and chlorpheniramine. Urticaria vasculitis treatment is mostly glucocorticoids, such as methylprednisolone, can also be combined with immunosuppressive drugs such as ampicillin. If there are uncomfortable symptoms, it is recommended to go to a regular hospital as soon as possible, diagnosed and treated by a doctor. The above drugs should be used under the guidance of a doctor.