Ibuprofen can be taken under the supervision of a doctor for fevers of 38.5 degrees Celsius or above caused by upper respiratory tract infections or common colds and influenza, and below 38.5 degrees Celsius it is usually indicated to lower the temperature physically and does not need to take ibuprofen. Due to the above factors caused by fever higher than 38.5 degrees Celsius adult patients, can be prescribed to take ibuprofen extended-release tablets, ibuprofen extended-release capsules to reduce fever, infants and young children can use ibuprofen suspension, ibuprofen suspension drops. Ibuprofen oral agent through the inhibition of cyclooxygenase and reduce the synthesis of prostaglandins, through the hypothalamus of the thermoregulatory center and achieve antipyretic effect, so as to achieve the purpose of reducing fever, but also has the efficacy of pain relief. However, when the body temperature is lower than 38.5 degrees Celsius, usually choose physical cooling, such as warm water to wipe the body, do not need to take ibuprofen to drug treatment. In addition, if it is due to strenuous exercise after the body temperature is also can not eat, it is recommended to go to the hospital to clarify the cause of the targeted treatment, not self-medication.