Disclosed is a method for treating keloid scaring. The air bag includes a bag main body, a discharge portion provided in the bag main body, and a connecting member which is provided within the bag main body and which is connected to the discharge portion on a bottom portion side thereof and connected to the opening and closing control unit on a tip end side thereof. The dual light emission panel is connected to the first housing, disposed between the first housing and the second housing when overlapping the first housing, and rotated around a connecting point of the dual light emission panel and the first housing.