The measured body temperature is 38°C. At this point, you can choose not to use antipyretic drugs, but only if the patient has no obvious accompanying symptoms of fever such as headache and generalized muscle aches, at which point you can continue to observe temperature changes. Because some people have this degree of fever because of a relatively mild inflammatory response, and the corresponding disease is transient, wait for a period of time, pay attention to rest, and drink appropriate amounts of water, the corresponding body temperature is likely to drop to normal. However, if this is accompanied by fear of cold, or even chills, the body temperature is to continue to rise. If chills are more obvious, this is also the time to take antipyretic drugs first, because chills indicate that the patient’s body temperature in the next half hour to an hour, is likely to exceed 38.5 ℃. If the temperature is at 38°C, accompanied by a particularly pronounced headache, and generalized muscle aches, or discomfort, oral antipyretics can be given directly. Although the fever can be reduced after oral antipyretics and can continue the observation, because there are uncomfortable symptoms, the symptoms should be relieved by oral antipyretic and anti-inflammatory drugs.