38.4℃ belongs to moderate fever, which can be handled by general treatment, symptomatic treatment and causative treatment. Since fever is a symptom and clinical manifestation of disease, and there are more causes of fever, allopathic treatment is the key to treating fever. 1. General treatment: both children and adults, for fever 38.4 ℃, need to drink more warm water, can promote the metabolism is conducive to fever, to ensure adequate sleep and rest, can not stay up all night and tired. 2. Symptomatic treatment: can be divided into physical cooling and drug therapy, available warm water wipe forehead, armpits, groin and other capillary-rich parts, each wipe 1 ~ 2 times wipe 10 ~ 15 minutes, can play a good role in reducing fever. For persistent fever temperature does not fall or physical cooling effect is not good, the temperature reaches 38.5 ℃ and above, you can follow the doctor’s instructions oral ibuprofen granules and other antipyretic drugs. 3. Treatment of the cause: infectious factors cause most of the fever, clear diagnosis of infectious pathogens can be applied under the guidance of the physician antibacterial drugs, antiviral drugs and other drugs to treat; non-infectious factors caused by fever, such as leukemia, need to be treated through chemotherapy, bone marrow transplantation and other methods of treatment. Fever need to go to the hospital in time, after a clear diagnosis, follow the doctor’s instructions for targeted treatment, you can not just randomly use drugs, so as not to cause adverse consequences.