Fever has been 37.4°C for two days, and is considered to be related to physiologic factors, or infectious, non-infectious, or functional fever pathology. Through physical cooling, give anti-infection, anti-virus, anti-tuberculosis and other drugs treatment. 1. Physiological factors: temperature measurement methods, including axillary temperature measurement, anal temperature measurement, oral temperature measurement and so on. Anal temperature measurement, body temperature 37.4 ℃ is a normal performance, do not need special treatment. 2. Infectious factors: bacterial, viral, pathogenic microbial infections can cause fever. It is recommended to clarify the diagnosis, bacterial infections can be given anti-infective drugs, such as cefadroxil, cefixime, amoxicillin and so on. Viral infections can be given oral antiviral solution, ribavirin, acyclovir, etc. Other pathogenic microorganisms infections, can correspondingly give appropriate drug treatment. 3. Non-infectious factors: leukemia, lymphoma, systemic lupus erythematosus, rheumatoid arthritis, drug fever, rheumatic fever, etc., are also the main causes of fever. It is recommended to pay attention to daily care, give warm water baths, antipyretic patches, ice packs, etc. is conducive to fever, but also for the primary disease treatment. 4. Functional fever: Functional fever is not the traditional sense of fever. Functional fever patients do not have organic lesions, considering factors related to climate change, neural regulation, activity, physiological activity. It is recommended to pay attention to life and dietary conditioning, which can help improve. It is recommended to pay attention to daily conditioning, and if necessary, go to the general internal medicine department of the hospital to find the cause of fever.