Many healthy people walk around with a temperature a degree or so above or below average.
Body temperature goes up and down during the day too.
Your temperature is usually lowest in the morning and higher in the evening. Thermometers you put in your ear are easy to use but cost a lot more than mercury and digital thermometers. A rectal reading is one degree higher than one by mouth or ear. Taking your temperature by mouth after you drink a hot liquid like soup or tea can make you think you have a fever when you don't. Adults probably don't have to do anything to treat a fever if they feel okay.