What is a fever in adults?
An adult with a fever has an abnormally elevated body temperature over 100.4 degrees F (38 C). Fever can be caused by a variety of conditions. In most cases, it is due to a viral or bacterial infection. The evaluation of fever varies with the age and general health of the patient. Fever is a more worrisome symptom in the patient with a poorly functioning immune system. Elderly individuals with a fever should be managed with special consideration.

What are the symptoms of a fever in adults?
Symptoms depend on the underlying cause for the fever. Common symptoms include excessive sweating, chills, and headache. Other symptoms include body aches, muscle aches, weakness, fatigue, cough, sore throat, rash, and sinus congestion.

How does the doctor treat a fever in adults?
Treatment of fever in adults depends on the underlying cause. Treatment may include rest, encourage fluids, and acetaminophen or nonsteroidal anti-inflammatory medications for fever control. Other treatment measures include antibiotics and antiviral medications.