Children who are fine during the day and have a fever at night should be given immediate treatment to lower the temperature, if necessary, hospital treatment. If your child has a sudden fever at night, first of all, you should closely monitor the temperature changes, and then immediately give the cooling treatment, you can choose the way of physical cooling: you can use warm water to wipe the body, such as the head, armpits and other parts of the body to help the body dissipate the heat, you can also use ice paste, fever reducer patch and so on to assist in lowering the temperature; When you have a fever, you should also pay attention to removing hot objects around you, and don’t cover your child with too many blankets or wear too many clothes, so as not to reduce heat dissipation. Medications can also be used to lower the temperature: if the temperature is persistently high and cannot be relieved by physical cooling, fever-reducing medications, such as acetaminophen or ibuprofen, can be used, and the instructions for the medication should be read in detail before taking the medication. If the fever does not go down, you should go to the hospital immediately.