A fever is a higher-than-normal body temperature. It’s a sign of your body’s natural fight against infection.
For adults, a fever is when your temperature is higher than 100.4°F.
For kids, a fever is when their temperature is higher than 100.4°F (measured rectally); 99.5°F (measured orally); or 99°F (measured under the arm).
The average normal body temperature is 98.6° Fahrenheit (or 37° Celsius). When you or your child’s temperature rises a few degrees above normal, it’s a sign that the body is healthy and fighting infection. In most cases, that’s a good thing.
But when a fever rises above 102°F it should bebe treated at home and, if necessary, by your healthcare provider if the fever doesn’t go down after a few days.
What causes a fever?
A fever has many causes and can be a symptom of almost any illness. Among the most common are:
Colds or flu.
Earaches.
Bronchitis.
Strep throat.
Urinary tract infections.
Mononucleosis.
What are some symptoms of a fever?
The main symptoms of a fever include:
Elevated temperature (above 100.4°).
Chills, shivering, shaking.
Body aches and headaches.
Fatigue (tiredness).
Intermittent or constant sweating
Treatment
If your fever is mild (less than 101°F), then no medical treatment is required. Simply make sure that you drink plenty of fluids (not alcohol) – and get plenty of rest.
For higher temperatures, there are many effective ways to getting your fever under control by seeking medical assistance

