In adults, axillary body temperature over 37℃ is considered fever, and body temperature between 36-37℃ is normal. Clinically, it is recommended that patients with fever below 38.5℃ can be cooled down without antipyretic drugs and can be cooled down by applying antipyretic patches, etc. However, if the body temperature exceeds 38.5℃, patients usually experience significant discomfort and can be treated by taking antipyretic and analgesic drugs such as aspirin and ibuprofen. Since fever is a clinical symptom and not a disease, patients should also improve relevant examinations to clarify the cause of fever and take treatment measures for the cause in order to avoid recurrent fever. However, some patients may experience a rise in body temperature after drinking, eating or strenuous exercise, and a temperature of no more than 37.5°C is considered normal.