Viral fever
Home care and when to see a doctor

Most fevers in adults are caused by viral infections, such as the common cold, flu and other seasonal viruses. They usually get better on their own within a few days with rest and fluids. Some fevers, however, need tests to rule out dengue, malaria, typhoid or other infections. The physicians at Charak Hospital, Lucknow help you decide what you need.

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About viral fever

What is viral fever?

Fever is the body’s response to infection. Viral fevers are caused by viruses, which antibiotics cannot kill. The body clears most viral infections on its own; treatment eases symptoms and prevents dehydration.

  • Usually lasts 3 to 5 days
  • Often comes with sore throat, cold, cough or body ache
  • Spreads through coughs, sneezes and contact
  • Antibiotics do not help viral infections
  • Fever lasting more than 3 days, or with warning signs, needs a doctor

Rest

Give your body time to recover.

Fluids

Water, ORS, soups and coconut water.

Paracetamol

For fever and pain, in the right dose.

See a doctor

If fever lasts or warning signs appear.

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Symptoms

Common symptoms

Typical symptoms of viral fever:

Fever

Often 100–102°F.

Body ache

Muscle and joint pain.

Headache

Mild to moderate.

Sore throat and cough

With runny nose.

Tiredness

Lasting a few days.

Loss of appetite

And mild nausea.

See a doctor promptly if fever lasts more than 3 days, is above 103°F, or comes with breathlessness, severe headache, rash, bleeding, confusion, persistent vomiting or very little urine. Call 0522-666-4444. Call 0522-666-4444.

Diagnosis

Do I need tests?

Many viral fevers need no tests. Your doctor may advise:

Complete blood count

To look for signs of infection type.

Dengue and malaria tests

During the monsoon and post-monsoon season.

Typhoid tests

If fever continues.

Urine test

If there are urinary symptoms.

Chest X-ray

If cough and breathlessness suggest pneumonia.

Treatment

Treatment and home care

Simple measures help most people recover.

Looking after yourself

Rest, fluids and paracetamol are usually enough.

Drink enough fluids to keep urine paleSponge with lukewarm water for high feverLight, easily digested food

Avoid

  • Antibiotics unless prescribed after examination
  • Painkillers like ibuprofen during the dengue season unless advised
  • Injections for fever without a clear need

Protect others

  • Cover coughs and sneezes
  • Wash hands often
  • Rest at home until well
Prevention

Preventing seasonal infections

General guidance — always follow the advice your own doctor gives you.

Hand hygiene

Wash hands with soap regularly.

Vaccines

Ask about yearly flu vaccine, especially if you are older or have long-term conditions.

Mosquito control

Prevent dengue and malaria by removing stagnant water and using nets.

Contact us urgently if

  • Breathlessness or chest pain
  • Confusion or drowsiness
  • Bleeding, rash or black stools
  • Fever above 103°F or lasting more than 3 days
0522-666-4444
Myths & facts

Myths about fever

Tap a card to see the fact.

Myth

“Antibiotics cure viral fever.”

Tap to flip
Fact

Antibiotics do not work against viruses and can cause side effects and resistance.

Myth

“A drip is needed to bring down fever.”

Tap to flip
Fact

Most people do not need IV fluids. Drinking enough fluids is usually sufficient.

Myth

“Bathing during fever is harmful.”

Tap to flip
Fact

A lukewarm bath or sponging can help bring the temperature down.

Your care team

Physicians

Internal medicine Dengue Malaria
Practical help

What to bring, costs & insurance

A little preparation helps us help you faster.

What to bring to your visit

Tick off as you pack:

  • Fever readings and dates
  • Any tests already done
  • List of medicines taken
  • Insurance card

Costs & insurance

Costs depend on the tests and treatment you need and the length of any hospital stay. Ask our team for a written estimate.

  • ✓Written estimate— ask for one before planned procedures or admission.
  • ✓Health insurance & TPA— cashless treatment for admissions under tie-up insurers; outpatient visits depend on your policy.
  • ✓Ayushman Bharat (PM-JAY) accepted for eligible admissions.
  • ✓Corporate & PSU panels— ask whether your employer has a tie-up with Charak Hospital.

*Coverage depends on your policy and the treatment. Our insurance desk can check this for you.

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FAQs

Frequently asked questions

How many days does viral fever last?

Usually 3 to 5 days. Tiredness may last a little longer.

When should I get a blood test?

If fever lasts more than 3 days, is very high, or comes with warning signs — or as your doctor advises.

Can I take antibiotics for fever?

Only if a doctor finds a bacterial infection.

Is viral fever contagious?

Many viral infections spread through coughs, sneezes and contact. Rest at home and wash hands often.

Glossary

Words you may hear

ParacetamolA medicine for fever and pain.
ORSOral rehydration solution.
CBCComplete blood count.

No matching term. Please ask your doctor at your next visit.

Related pages

Related departments and guides

Internal medicine Dengue fever Malaria Typhoid fever Health library

Fever not settling?

See a physician at Charak Hospital, Hardoi Road, Dubagga. Call 0522-666-4444.

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Your details are used only to contact you about your appointment.

Medical information disclaimer: This page provides general health information for patients and families. It is not a substitute for a consultation, diagnosis or treatment by a qualified doctor. Treatment decisions depend on each patient's individual condition. In an emergency, call 0522-666-4444 or go to the nearest emergency department.

About this page: Prepared by the Charak Hospital web team with the help of AI writing tools, using information from the Department of Internal Medicine, Charak Hospital & Research Centre ·  Last updated: October 2026

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