The human body temperature is relatively constant and does not usually fluctuate more than one degree during the day. Under normal circumstances, the axillary body temperature is between 36-37 degrees, and the oral and rectal temperatures are slightly higher. If the body temperature is 37.3 degrees at night and there is no other abnormal feeling, it is also normal. At this time, you need to drink more water, eat a light diet, and try not to eat spicy and stimulating food, not to mention alcohol. If you have symptoms and feel uncomfortable, it may also be caused by a cold, so you can first observe closely and check your temperature again after 1 hour. If you continue to have an elevated temperature, you can take appropriate oral anti-sickness and anti-cold medication to actively treat the condition.