If a child has a fever, you can drink glucose water to replenish energy, especially when the child’s fever is more than 38.5 ℃, glucose water can properly replenish the body’s sugar and loss of energy. However, if the child has a recurring fever, simply drinking glucose water is not acceptable, need to improve the blood routine and related inflammation indicators of the examination, fever and sweating will make the body electrolyte loss, so need to improve the electrolytes and blood routine examination to clarify, if necessary, need to supplement the sugar saline and physiological saline. Meanwhile, sputum culture and other related tests should be completed if possible, and antibiotics or antiviral drugs should be used according to the results.