During the pneumonia epidemic of novel coronavirus infection, if the body temperature is above 38C° and the fever persists, it is recommended to visit the designated hospital or fever clinic, and cooperate with the doctor for blood routine, urine routine, biochemical index, coagulation function, chest imaging and other examinations to clarify whether the patient has pneumonia of novel coronavirus infection. If the diagnosis is confirmed, treatment should be actively carried out, with effective oxygen therapy and physical cooling, together with antiviral and antibacterial drugs. Heavy and critical patients should be given intensive respiratory support and reasonable use of glucocorticoids. If the fever is not caused by pneumonia with novel coronavirus infection, the specific cause should be clarified and treated for the cause.