You have a fever when your temperature rises above its normal range. What’s normal for you may be a little higher or lower than the average normal temperature of 98.6 F (37 C).
Having a fever is a sign that something out of the ordinary is going on in your body. For an adult, a fever may be uncomfortable, but usually isn’t a cause for concern unless it reaches 103 F (39.4 C) or higher. For infants and toddlers, a slightly elevated temperature may indicate a serious infection. Fevers generally go away within a few days. A number of over-the-counter medications lower a fever, but sometimes it’s better left untreated. Fever seems to play a key role in helping your body fight off a number of infections.
Taking a temperature
To check your or your child’s temperature, you can choose from several types of thermometers, including oral, rectal, ear (tympanic) and forehead (temporal artery) thermometers.
Although it’s not the most accurate way to take a temperature, you can use an oral thermometer for an armpit (axillary) reading:
Use a rectal thermometer for infants:
You may be able to prevent fevers by reducing exposure to infectious diseases. Here are some tips that can help:
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