A high fever with a temperature of 39.5 degrees is accompanied by a more pronounced discomfort. If, after applying antipyretic medication, the temperature quickly returns to normal and does not rise again, and the accompanying symptoms on the body completely disappear, then it is considered not serious overall. However, if the inflammatory response of the body persists and antipyretic drugs are applied when the fever is high, it is likely to be more difficult to completely reduce the body temperature to a normal one, and even if it is reduced to a more normal temperature, the patient is likely to have a temperature that rises again to the level of a high fever. So a high fever of 39.5 degrees is relatively heavy at this time. However, it is not possible to judge the seriousness of the disease simply by this, but it is necessary to judge the seriousness of the disease after a clear diagnosis through various examination test results.