Urticaria has different manifestations according to its different types, including acute, chronic spontaneous and induced, etc. It is common to see bright red or pale white masses, erythema with itching. 1. Acute spontaneous urticaria: the onset of the disease is often acute, itchy skin, spontaneous wind or angioedema. Generally, there is a sudden and obvious itching of the skin, and the itchy parts can appear rounded and different sized wheals very quickly. In severe cases, it is often accompanied by panic, irritability and other manifestations. The duration of the disease usually does not exceed 6 weeks. 2. Chronic spontaneous urticaria: spontaneous wind, angioedema recurrent episodes of more than 6 weeks, and each attack at least 2 times. Generally, the patient’s symptoms are mild, and the windmills may be more or less frequent. 3. Induced urticaria: Including skin rash and cold contact urticaria and other types. Skin scarring is manifested as a few minutes after the skin is scratched with a hand or a blunt object, a strip of elevation along the scratches will appear. Cold contact urticaria is characterized by cold water and other cold objects, such as the emergence of a cold skin. 4. Contact urticaria: it is characterized by skin contact with certain allergens that occur in the form of wheals, erythema, itching. It may not recur after moving away from the allergens. In addition, there are cholinergic urticaria, solar urticaria and other types of urticaria, if there are wind, erythema, itching and other discomforts, it is recommended to consult a doctor in a timely manner for diagnosis and treatment.