Family baby fell to the back of the head, and also swollen a bag, you should at the first time the family refrigerator within the ice or cool things out, the outside must be wrapped with a towel, and then placed on the child’s swollen bag, through the role of cold compresses so that the bag can no longer expand. The main point is to observe the child’s state, there is no nausea, vomiting, especially jet-like vomiting, vomiting very fierce. If there is any drowsiness or convulsions, if there is jet-like vomiting or frequent nausea, or even drowsiness or convulsions, parents are advised to carry their children to the hospital for CT examination.