Some cases of acute urticaria can be cured, but chronic urticaria is usually difficult to cure. The causes of urticaria are mainly related to allergies and infections, as well as abnormalities in the autoimmune system and mental factors. 1. Acute urticaria. For acute urticaria caused by allergies or infections, after removing the causative factors, the symptoms of urticaria can disappear completely, so as to achieve the effect of clinical cure, but it is easy to recur if it comes into contact with the causative factors again, so avoiding re-exposure to the allergens is the main preventive and therapeutic measures for this kind of urticaria. 2. Chronic urticaria. Because of the complexity of the cause, the condition is more stubborn, and easy to recur, so the vast majority of chronic urticaria is difficult to cure. Due to the influence of many factors, the treatment effect also exists individual differences, the specific circumstances need to ask the doctor for an interview.