The children of Changsha Lu were 9 years old, and urticaria broke out eight days ago. At 11:00 on October 2nd, they arrived at the three-layer material information field of the opening and closing class. Physical condition at the time: fever, itchy body. Treatment measures: the mineral water in the legs, neck and back is rubbed with information, and the itching is stopped on the spot; the information field adds information for 20 minutes to fall back! After 21:00 in the evening, the skin function returns to normal. 10 hours from entry to recovery!!