The child’s poor mental state after a fever indicates a serious condition and should be taken seriously. It is necessary to monitor the child’s temperature changes and drink more water to prevent dehydration and convulsions caused by high fever. If the body temperature exceeds 38.5 degrees, you can take ibuprofen suspension drops orally, which is suitable for infants and children to reduce fever and has a rapid effect on reducing fever. In case of persistent high fever, the medication can be given once every 4-6 hours, no more than 4 times a day. You can also use a cool towel on the forehead, try rubbing the armpits, groin and the heart of the hands and feet, which can play an auxiliary role in cooling the temperature. If the fever is depressed, accompanied by convulsions and transient loss of consciousness, it is recommended to consult a pediatric emergency room, and if the condition is serious, hospitalization is recommended.