Inexplicable laughter in children with fever is often caused by a viral infection that causes twitching of the muscles of the body and even confusion and inexplicable excitement. When this happens, it is usually because the child is in a state of high fever. It is recommended that parents immediately give physical cooling by applying ice packs to the head and immediately visit a pediatric clinic to monitor temperature changes. Tilt the child’s head to the side to help keep the airway open, and clean the mouth as soon as possible to prevent the baby from choking. It is important to check the child’s urine and stool. There may be incontinence and it should be cleaned up promptly.