Fever Guide: Normal Ranges, Rashes & Toddler Care

Fever symptoms in children and infants require careful monitoring, from identifying dangerous temperature ranges to choosing the right thermometer. Learn about the connection between fever, rashes, and metabolic syndrome.

Mother kissing sick daughter's hand

Fever in Children That Lasts Three Days or More With No Other Symptoms

Your child has a fever when she has a rectal or ear temperature of 100.4 degree Fahrenheit or greater, an oral temperature of 100 degrees Fahrenheit or greater or an axillary -- underarm -- temperature of 99 degrees Fahrenheit or greater. Taking a temperature in the ear in a child under 6 months of age is not reliable.

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