Fever in infants and children is most often an “acute upper respiratory tract infection”. Generally, acute respiratory infections (including herpes pharyngitis) will be feverish for about 3 days, and will often continue to be high fever, manifesting as a persistent high fever that does not go away, or a high fever again 2-4 hours after the fever subsides! Regardless of whether oral antipyretics or small injections are given, it is difficult to restore the body temperature to normal (below 37℃), and it is usually sufficient to maintain the body temperature below 38℃. It is necessary to diligently provide physical cooling to the child. The treatment of fever reduction is as follows: 1. First, let the child drink more water and take the temperature regularly; 2. Physical cooling: use external antipyretic patches and wipe the forehead, neck, armpits and thigh roots with a warm water towel. Try not to wipe the front chest and back. Do not wipe with alcohol; 3, more than 38.5 ℃ (children who have had high fever convulsions more than 38 ℃) oral Merlin antipyretic, drink the perfect Lin 1 hour fever still does not go down, can again oral Benadryl or Tylenol to reduce fever; 4, Merlin at least 4 hours between oral 1, not more than 4 times in 24 hours, generally not more than 3 days; 5, the acute phase of fever is often characterized by high fever does not go down, the fever reducing effect of playing antipyretic injection also Not ideal, drink more water, more physical cooling is most important! The drip is an anti-inflammatory, not a fever, you can not expect to play on the drip, the fever immediately receded, there must be a process; 6, any time a high fever persists or 3 days does not recede, you must go to the hospital for medical attention.