If the child’s fever exceeds 38.5 ℃, the use of Merrill fever, if the use of antipyretic fever does not go down, do not repeat the application of Merrill, the two antipyretic drugs must be more than 4 hours between the reapplication of the short-term can not be repeated application, it is recommended to consult a doctor in a timely manner. Physical methods can also be used, such as drinking more water and increasing the amount of fluid intake. You can also use warm water to wipe the forehead, neck, armpits, groin, is conducive to fever reduction. Always make sure that the extremity endings are warm; if they are warm, it favors heat dissipation. If it is cool, it means that the circulation of the endings of the extremities is not good, and the body temperature will continue to rise, and there will be chills, and in severe cases, there will be hyperthermic convulsions.