Fever is one of the symptoms that accompany a disease, and there are many diseases that can cause fever to appear. In response to the phenomenon of persistent fever, the first step should be to identify the disease that causes the patient to develop fever and to provide effective treatment for the cause in order to obtain the desired results. Under the diagnosis of the doctor, after the cause is clear, two aspects of treatment can be taken, namely, allopathic treatment and symptomatic antipyretic treatment. 1. Treatment for the cause 1. Infectious fever: Most fevers are caused by infections, including viral and bacterial infections, and should be treated with targeted anti-inflammatory and antiseptic or antiviral drugs, and the symptoms of persistent fever can be relieved only after the pathogens are cleared from the patient’s body; 2. Non-infectious fever: Dehydration, leukemia, tumors and other non-infectious diseases may also lead to fever, and should be treated for the corresponding The corresponding diseases should be treated. 1.Physical cooling: you can use wet towels to wipe the patient’s neck, armpits, and thighs for 5-10 minutes; you can also use antipyretic paste on the forehead area, which has the effect of cooling the heat; 2.Medication: you can take antipyretic drugs under the guidance of a doctor, common antipyretic drugs include ibuprofen suspension or ibuprofen suspension granules, acetaminophen tablets, etc. The antipyretic effect can be maintained for several hours, and help patients sweat to cool down.