A human body temperature of 37.3~38℃ is considered low fever. An axillary temperature of 37.3~38℃ is considered as low fever, 38.1~39℃ is considered as moderate fever, 39.1~41℃ is considered as high fever, and 41℃ or above is considered as ultra-high fever. The causes of fever are mainly divided into infectious fever and non-infectious fever. Infectious fever is caused by microorganisms such as bacteria, viruses, fungi, etc., while non-infectious fever is caused by certain diseases, such as tumors, connective tissue diseases, and blood diseases. If the fever is caused by a cold, you can take Cold and Flu Granules to treat the symptoms of fever caused by common cold and influenza. Chinese medicines such as Banlangen Granules, Blue Scutellaria Oral Liquid, Pu Di Lan Anti-inflammatory Oral Liquid, etc. can be taken under doctor’s guidance. If the low fever is caused by tuberculosis, it is recommended to go to regular specialized hospitals for examination and treatment. If the low fever is caused by lung cancer, patients with surgical indication should be operated as early as possible, and those without surgical indication should have radiotherapy. However, there can be fluctuations in certain specific states, but often not more than about 1 degree: body temperature can fluctuate throughout the day, being slightly higher in the morning than in the afternoon. Temperatures may be elevated in pregnant and ovulating women.