The treatment of fever needs to be considered according to the cause of the fever, as well as the severity of the illness and the overall health of the patient. If the fever is only caused by the common cold and the condition is relatively mild, it can be cured by oral administration without the need for fluids and injections. If the fever continues to be high and the condition is serious, it is recommended to use intravenous infusion to treat the disease. The intravenous infusion is not only to reduce the fever, but also to regulate the use of antibiotics, actively eliminate inflammation, replenish body heat and blood volume, treat the disease effectively and more thoroughly. Intravenous fluids are not necessary for the treatment of fever caused by the common cold. In the treatment of disease, it is best to maintain the principle of treatment that can take medication without injections and injections without infusions, especially for children, who need to increase a certain degree of resistance to disease, and the mode of administration of fever should be determined according to the specific condition.