In adults, a body temperature measured at 38.2°C is considered a fever, and a measurement >37.3°C can be called a fever. If the degree of fever does not exceed 38.5℃, the symptoms may not be too obvious at this time, but a body temperature of 38.2℃ is likely to be accompanied by some uncomfortable symptoms, such as a slight fear of cold, but also a more pronounced fear of cold, or even headache and general muscle aches. With such symptoms, antipyretic drugs can be applied to reduce the fever, but if these symptoms are not severe and the patient can tolerate them perfectly, he or she can also continue to observe the temperature. Because some diseases that cause fever are transient in nature, they can be treated without any treatment, with rest and moderate water intake, and the body temperature will be able to go down and the fever will not return.