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Viral Fever
Viral fever is a raised temperature caused by a viral infection, often with body aches and tiredness. Most settle on their own, but some fevers need testing to rule out serious causes.
Causes & risk factors
- Common respiratory viruses
- Seasonal flu
- Mosquito-borne viruses in some seasons (dengue, chikungunya)
- Other viral infections
- Spread through close contact or droplets
Common symptoms
Tests & diagnosis
Treatment & management
- Rest and plenty of fluids
- Fever-reducing medicines (paracetamol category)
- Treating symptoms like sore throat or cough
- Watching for warning signs of serious infection
- Antibiotics are not helpful for viral fevers
When to see a doctor urgently
- High fever for more than 3 days, or not settling
- Warning signs of dengue — bleeding, severe abdominal pain, drowsiness
- Breathlessness, chest pain or confusion
- Fever with a rash, stiff neck or reduced urine
Frequently asked questions
Do I need antibiotics for a viral fever?
No. Antibiotics do not work against viruses. Treatment is rest, fluids and fever control, with tests to rule out dengue, malaria or typhoid when suspected.
When should a fever be tested?
If it lasts more than 3 days, is very high, or comes with warning signs (bleeding, severe pain, breathlessness or drowsiness), see a doctor for blood tests.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.