 [ Symptoms ] i was diagnosed with diabetes should not my doctor suggest metformin [ Disease ] a fever is the body is way of fighting off illness and infections the normal adult temperature has been programed into our minds as being 98 6 degrees f actually 98 6 is just an established average because we are all unique individuals it may be more helpful to consider a normal temperature range to be between 97 degrees   99 degrees when the adult has a temperature 1 degree above 99 degrees 100 degrees they have an established fever a fever reaching 101 degrees may be treated with over the counter fever reducers such as acetaminophen when an adult is fever reaches 103 degrees there is concern and a professional medical evaluation is recommended