Many people may experience back pain after a fever for a variety of reasons. Sometimes it can be interpreted as the body is in a weaker state after the fever has gone down, and this is a time when sterile inflammation is likely to occur, and sterile inflammation is not the same as inflammation of the throat. Inflammation of the throat may be a bacterial infection, which is treated with antibiotics such as cephalosporin and penicillin. In contrast, aseptic inflammation arises from causes that may be related to cold, fatigue, trauma, over-activity and weakness of the body. It can be relieved after some rest or symptomatic treatment. When a fever is reduced, the body’s resistance is poorer and aseptic inflammation is easily induced, which is the most common case. However, to exclude other rare conditions, especially fever-related diseases that can cause back pain, this must be determined by combining the clinical history and physical examination, as well as the necessary laboratory tests, and imaging, to try not to cause unnecessary damage to the patient due to misdiagnosis or omission.