If a person is found to have blacked out and fainted, he or she should be placed in a flat position immediately, as lying down increases blood flow to the brain, which can help to promote awakening. In addition, pat the patient, and if the patient gradually comes to his or her senses, give him or her warmth and warm water to drink, and ask him or her why he or she fainted. If it is hypoglycemia, give high sugar cookies or sugar water and other food; if it is emotionally agitated, give comfort to the emotions; if it is for other reasons, it should be sent to the hospital immediately to do the corresponding examination and treatment. If the patient is not conscious, we should determine whether the respiratory heartbeat has stopped, if the respiratory heartbeat stops, we should immediately give CPR, call 120 to request medical personnel to come to the rescue.