Ibuprofen needs to be taken with warm water and repeated every 4-6 hours, not more than 4 times in 1 day. Ibuprofen is a non-steroidal anti-inflammatory drug with antipyretic and analgesic effect. The onset of action of ibuprofen in the body is half an hour, with a peak time of 2 hours and a half-life of 4-6 hours. Therefore, ibuprofen is recommended to be taken once every 4-6 hours, and no more than 4 times throughout the day. Clinically this drug should not be used for more than 3 days in a row for the relief of fever and not more than 5 days in a row for the treatment of pain. At the same time, patients taking ibuprofen should not take other antipyretic and analgesic drugs at the same time, as they are likely to increase gastrointestinal irritation, liver and kidney damage, and increase adverse drug reactions, and avoid drinking alcohol during taking the drug. In addition, if the symptoms are not relieved after taking ibuprofen, the patient should be promptly admitted to the hospital for medical consultation and treatment for the cause. Since the side effects of ibuprofen are mild gastrointestinal discomfort, it can also cause gastrointestinal bleeding and strengthen ulcers, so use with caution in patients with peptic ulcers.