The symptoms of children’s cold and fever with red and swollen eyes are mainly due to the invasion of pathogens in the body, causing congestion and edema of the mucous membrane of the upper respiratory tract as well as the exudation of large amounts of inflammatory secretions. At this time, the immune system of the whole body is active, accompanied by changes in body temperature at any time, and there is a tendency for the body temperature to rise, causing the capillaries on the skin surface of the whole body to dilate, including the capillaries of the eyes to dilate and become congested, resulting in the symptoms of children with cold and fever and red eyes. It is important to keep warm and avoid getting cold. You can monitor the change of body temperature, check the blood routine and other clear causes, and carry out symptomatic and etiological treatment.