A viral fever is caused by a viral infection and results in a raised body temperature. Viruses spread easily between people through coughs, sneezes or other contact with bodily fluids. Common symptoms of a viral fever include fever, chills, sweating, headaches and body aches. While antibiotics are ineffective against viruses, treatment focuses on reducing fever and relieving symptoms. Most viral fevers will resolve on their own within 1-2 weeks through rest and increased fluid intake.