If the antipyretic has not worked after 1 hour and the temperature has not dropped to normal, consider repeating the antipyretic 1 time at intervals. If you are using ibuprofen or acetaminophen, you can repeat the fever reducer every 4-6 hours. Also, while using fever reducing medications, it is important to treat the cause of the fever. Fever-reducing medications are only symptomatic; if the cause of the illness is not addressed, there is no way to get rid of the illness, and it is likely that the temperature will rise again after the medication is discontinued. Therefore, if the body temperature has not dropped to normal after taking antipyretics for one hour, the cause of the illness should be treated in addition to repeating the use of antipyretics. Antipyretics are not recommended to be used for more than 3-5 days in a row to reduce fever. If the body temperature does not come down to normal, it is necessary to go to the hospital in time for consultation, examination and treatment.