It is best to measure temperature rectally in children until age 3 since that method is most accurate.
Digital thermometers are fairly accurate and have an instant readout.
Ear scanners are expensive and are often inaccurate when ear canals are blocked with wax or when a child has an ear infection. Children with fever can be uncomfortable with complaints of headache, body aches, loss of appetite, tiredness, restless sleep and irritability. Their heart rates and respirations increase and their skin flushes. Parents who contact their pediatricians may be told to begin simple, non-medicine treatment to help the child feel better. Using too much acetaminophen for a long period of time has been related to liver dysfunction.