The body temperature usually starts to decrease after 30 minutes of taking ibuprofen pellets, and it can be reduced to normal after 2 hours of taking, and the drug is degraded by the body after 4-6 hours of taking. Ibuprofen granules in the human body is through the inhibition of prostaglandin synthesis, so as to play an analgesic, anti-inflammatory and antipyretic effect. The drug begins to work 30 minutes after entering the body, and the active ingredient of ibuprofen in the blood reaches its peak after 2 hours of administration. Because ibuprofen granules may lead to risks of gastrointestinal reactions, liver and kidney damage, overdose application and long-term application should be avoided. In addition, taking ibuprofen granules with warm water can accelerate the time of drug onset, so patients need to drink more water after taking the drug to promote blood circulation in the body, and physical cooling methods can be used to assist in cooling down the temperature.