Urticaria belongs to the category of addiction rash and so on in Chinese medicine. Wu Feng San can treat acute urticaria, but is not applicable to chronic urticaria. It has the effect of clearing heat and nourishing blood, dredging wind and removing dampness, and is mainly used for treating rubella and eczema, with symptoms such as itchy skin, red rash, or cloudy spots all over the body and oozing water after scratching. In modern clinical practice, it is used to treat eczema, acute urticaria, allergic dermatitis, drug dermatitis, neurodermatitis, etc., which are caused by wind-heat or wind-dampness. Wu Feng San is not suitable for chronic urticaria and rubella caused by deficiency cold. During the period of taking the medicine, avoid eating spicy, fish, tobacco, alcohol, strong tea, etc., so as not to affect the efficacy. If the patient is diagnosed with urticaria, he should cooperate with the doctor for treatment in a timely manner, do not take medication on your own, in order to avoid improper use of medication and delay the condition.