Need to know if your child has a fever? Make sure you know the best way to take their temperature. Rectal and oral temperatures are more accurate than taking an axillary temperature, such as under the arm, according to the American Academy of Pediatrics.
If your child is 3 and under, a rectal temperature is recommended. After the age of 4, take your child’s temperature by mouth. Always use a digital thermometer. The AAP encourages caregivers not to keep mercury thermometers in their homes to prevent accidental exposure.