First aid solution If you have a bag on your head, then using an ice pack on the affected area can reduce the edema. If your head starts to bleed after being smashed, dispose of it in the same way as a cut, that is, use a clean towel to press the wound to stop the bleeding, and then go to the hospital to stitch up the wound and check whether there are internal injuries. If the injured person fainted, then you need to call an ambulance to send to the hospital quickly, without a moment’s delay. Do not let the injured person sleep alone. Within 24 hours of being smashed, someone must be with the injured person. If the injured person falls asleep, then wake him/her up every three hours and ask him/her to answer a few simple questions to ensure that he/she is not unconscious and has no intracranial injuries, such as concussion. Precautions When the injured person has convulsions, dizziness, vomiting, nausea, or has significant abnormal behavior, he or she needs to be admitted to the hospital immediately for medical attention.