Patients with fever often have non-specific symptoms such as malaise, headache and muscle and joint aches. In addition, patients may have other clinical symptoms that are characteristic of the disease causing the fever, so the symptoms of fever can vary from disease to disease. Fever is commonly associated with respiratory tract infections, often accompanied by symptoms such as runny nose, cough, sputum, sore throat, etc. It is often caused by viruses and bacteria, and should be based on the specific pathogens, and clinically needs to be combined with routine blood tests and relevant hematological tests to identify the specific causative organisms, in order to clarify the direction of treatment, so as to choose antiviral or anti-inflammatory treatment. In addition, fever is also common in some intestinal system infections, such as the common acute gastroenteritis, often related to rotavirus infection, the high incidence of autumn, patients in addition to fever will also appear watery stools, nausea, vomiting and other symptoms, this situation first need to supplement the fluid symptomatic support treatment is the main, antibiotic treatment is not effective. If the patient has fever, frequent urination, urinary urgency and painful urination, urinary tract infection should be considered, and the pathogen needs to be clarified by combining urine routine and urine culture examination in order to treat the cause. Some patients with recurrent fever, such as patients with tuberculosis and malignant tumors, this condition needs to be treated symptomatically for the cause. In case of fever, when the body temperature is greater than 38.5℃, you can take some alternate antipyretic drugs, such as acetaminophen, and ibuprofen extended-release capsules. If the body temperature is less than 38.5℃, physical cooling can be performed, such as applying cold water towels to the forehead or wiping the armpits and neck with alcohol. Fever reduction treatment is only one aspect, the key is to find the cause of the fever and then treat it for the cause. Fever is often accompanied by non-specific symptoms such as malaise, headache and muscle and joint aches, in addition to other clinical symptoms of the original disease. When fever develops, if the general condition is good, physical cooling or fever-reducing drugs can be used first to reduce fever. If the effect is not good, prompt admission to the hospital is recommended to identify the cause for treatment.