The most common reason for persistent low fever is the occurrence of respiratory infections, especially upper respiratory tract infections, which can cause nasal congestion, runny nose or sore throat. You can take oral anti-cold drugs or anti-viral drugs for treatment, such as Pudilan Anti-inflammatory Oral Liquid or Aminga Yellow Mineral Capsules or Vitamin C Silver Warp Tablets, which are effective. If a bacterial infection causes a low fever, there will be an increase in the number of white blood cells in the routine blood test, which requires the use of antibiotics for treatment, oral antibiotics such as cefixime, cefradine or cefadroxil, amoxicillin. In the case of cephalosporin and penicillin allergy, azithromycin can be used for treatment. Another cause of persistent low fever may be diseases of the rheumatic system or diseases caused by immune deficiency. First, you need to go to the hospital for a specific examination to find out the cause of the disease and treat it for the cause. If the fever feels uncomfortable, however, the body temperature is relatively low, you can use Chinese medicine to reduce fever to relieve the symptoms, such as antelope horn granules.