Consult for Fever Medicine or Consult for Fever Treatment

DocOnline Icon

 What We treat

About Fever (Pyrexia)

Fever or Pyrexia is defined as an elevation of the body temperature that exceeds the normal daily variation of 36.5°C -37.5 °C or (97.7°F -99.5°F)

98.6° F (37° C) is usually considered a normal body temperature

Acute onset fever with no specific signs and symptoms (Acute undifferentiated fever) is highly prevalent in tropical areas or post-monsoon season in various parts of India poses a great challenge for Health care.

Acute undifferentiated fever in India

Types of Fever

Fever is classified based on the duration and height of the temperature

1. Based on Duration of Fever

Classification of fever based on the duration
Types Duration Disorders
Acute <7 days › Malaria
› Viral
Subacute Up to 2 weeks Typhoid fever
Chronic >2 weeks Tuberculosis

2. Based on Height of Temperature

Classification of fever based on temperature height
Temperature Fahrenheit (°F)
Mild/low-grade fever 100.5–102.2
Moderate grade fever 102.2–104.0
High-grade fever 104.1–106.0
Hyperpyrexia >106.0

Causes of Fever

Any substance that induces fever is called a pyrogen.

Mechanism of Fever

The disorders that may cause fever are

  • Infectious Diseases (Viral, bacterial, fungal (most common cause))
    • Respiratory tract infections
    • Gastrointestinal infections
    • Urinary tract infections (UTIs)
    • Skin infections
    • Malaria
  • Inflammatory conditions
    • Rheumatoid arthritis
    • Lupus
  • Cancer
  • Physiological stress
  • Environmental Factor
    • Heatstroke
  • Drugs
    • Cocaine, Amphetamines, etc

Symptoms of Fever

  • Shivering
  • Lack of appetite and generalized weakness & malaise
  • Sleepiness
  • Headache
  • Joint Pain
  • Inability to concentrate

Warning Signs of Fever

  • Temperature >103oF
  • Shortness of breath
  • Mental clouding
  • Persistent headache
  • Fever does not subside in 48 hrs

If you notice these warnings consult a doctor immediately

Diagnostic Evaluation

Identifying the cause of fever by doing lab tests can help treat the patient better.

  • CBC (complete blood count )
  • Blood cultures/ Widal test
  • Chest x-ray
  • Urinalysis and urine culture

Treatment at Home

  • Take adequate rest
  • Consume Plenty of fluids ( fresh fruit juices, glucose, etc) to avoid dehydration
  • Use clean and boiled water
  • Easily digestible food is taken such as porridge, rice gruel, etc
  • OTC drugs such as paracetamol/ibuprofen effectively reduce fever

If you find yourself experiencing symptoms of fever, or don’t know why you are getting a fever, book a doctor's appointment for immediate guidance.


Fever >103 °F is a cause of concern.

Take adequate rest, drink plenty of fluids and an antipyretic will help to reduce the symptoms.

Looking for a Doctor Advice?
icon  Schedule Appointment
Download the DocOnline App 

  • Live Chat with Doctors
  • Book Doctor Appointment Online
  • Speak to a Doctor within 15 Minutes
  • Consult doctors via Audio/Phone Call & Video
  • For You + 3 Family Members
  • Store health records
  • Read health tips
  • Order Medicines Online & Get Lab Tests Done Easily

Scan DocOnline Qr Code
Scan QR code to download the app

or Go to Play Store and Download the app
Online Doctor App
DocOnline Icon
Download the DocOnline App
Download DocOnline Playstore App
Download DocOnline IOS App
divider icon footer