If a child has a high fever that does not subside, an axillary temperature that exceeds 38.5°C, or a generalized pain such as headache and bone pain, ibuprofen can be used to reduce fever and relieve pain. Because ibuprofen is a non-steroidal anti-inflammatory drug, it has the effect of inhibiting the secretion of prostaglandins, which can achieve good antipyretic and analgesic effects. Since ibuprofen is a strong stimulant to the gastrointestinal tract, some of them can also cause liver and kidney function damage in children, especially in high doses and overdoses. Therefore, children should take ibuprofen once in 6 hours and not more than once, otherwise it may cause adverse reactions.