What are the symptoms of chronic urticaria

The symptoms of chronic urticaria are mainly skin wheals displayed by patients, and they are accompanied by itching symptoms of varying degrees. Some patients may not be accompanied by certain itching, such as skin scratches, although they show wheals, and this wheal is caused by certain mechanical stimulation or scratching, but some people may not feel obvious itching symptoms. Some chronic urticaria may show certain food allergies, such as peptone urticaria, which may be caused by eating specific protein foods. Some patients may cause urticaria due to immune dysfunction, because this case may be accompanied by certain infections, such as bacterial infection, which may also lead to urticaria, or urticaria may be induced due to certain exercise. Such as cholinergic urticaria, also belongs to this situation.