Chronic urticaria dietary contraindications to the intake of allergy-causing food, daily attention to rest, emotional regulation, maintain skin hygiene and so on. Most chronic urticaria patients can not find the exact cause, food is one of the common causes. If it is clear that it is caused by diet, you should avoid eating allergenic food. Daily attention should be paid to rest, regular life, avoiding late night and exertion; regulating emotions, moderate exercise; wearing comfortable clothes, maintaining skin hygiene. Other causes of chronic urticaria include infections, medications, respiratory inhalants and skin contacts. Physical factors (cold, heat, sunlight, friction and pressure), mental and endocrine factors and genetic factors can also lead to the occurrence of urticaria. Chronic urticaria has a greater impact on life, patients need to adhere to standardized treatment under the guidance of a physician, and pay attention to investigate whether there is a combination of autoimmune diseases.