Merrill belongs to the non-steroidal anti-inflammatory drugs, also belongs to the non-steroidal antipyretic, analgesic, the onset of action is 30-60 minutes, the peak time in the body is 2-4 hours, the half-life is 6-8 hours, therefore, after eating Merrill usually can start to reduce the fever within one hour. If the fever does not go down after one hour of eating, there are several measures as follows: 1, drink a lot of water, drink 500-1500ml of water after taking Merrill, not enough water can not play a fever-reducing effect; 2, you can take other therapeutic drugs for the cause of the cold: viral colds, antiviral drugs such as ribavirin, ganciclovir, cytarabine, etc.; bacterial infections, antimicrobial agents such as levofloxacin, penicillin, azithromycin, etc.; wind and wind, the fever can be reduced within one hour. Azithromycin, etc.; wind-cold type cold after eating Merrill has been fever, then you can take anti-wind-cold drugs, can play a synergistic effect of Merrill fever.