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Beyond the Thermometer: A Concise Guide to Understanding and Treating Fever

Picture of Dr. Jameel - MBBS, MCPS (Family Med)

Dr. Jameel - MBBS, MCPS (Family Med)

Dr. Jameel, a compassionate family physician, simplifies medical information through easy-to-understand blogs. His holistic approach promotes healthier living, and he's actively engaged in local health initiatives. Join him on your journey to better health.

Understanding and treating fevers
Understanding and treating fevers

Fevers are a common occurrence in people of all ages. They can be caused by a variety of factors, including infections, inflammation, and medications. While most fevers are not serious, it is important to understand the causes and symptoms of fevers so that you can seek medical attention if necessary.

1. Introduction:

Fevers are a common way your body fights infection. They happen when your body’s temperature rises above normal. This can make you feel uncomfortable and cause other symptoms like chills, sweating, and headache. Fevers aren’t usually serious, but they can be a sign of a more serious infection. If you have a fever, it’s important to see a doctor to rule out anything serious.

2. The Basics of Fever and What It Means?

Increase in your body’s temperature is called as fever. Your normal body temperature is around 37 degrees Celsius (98.6 degrees Fahrenheit). When you have a fever, your temperature goes above this range.

Fever is not a disease rather it is a symptom of an underlying condition, such as an infection or inflammation. When your body is fighting an infection, it releases chemicals called pyrogens. These pyrogens travel to the hypothalamus, which is a part of the brain that regulates body temperature. The hypothalamus then raises your body temperature in an attempt to fight the infection.

Fever can also be caused by other factors, such as strenuous exercise, hot weather, or certain medications.

3. Why It Is Important to Diagnose and Treat Fevers?

While fevers can often be a response to minor infections, chronic fever can be a sign of serious underlying diseases like cancers or autoimmune disorders. Early diagnosis and treatment of fevers can prevent a range of complications and improve overall health. It is important to understand the symptoms and the underlying cause of fever and take action accordingly.

4. What Causes a Fever?

It is usually caused by an infection, but it can also be caused by other things, such as inflammation, autoimmune diseases, cancers, tumors, heat exhaustion, and side effects of medication and vaccinations.

  • Infections

The most common cause of a fever is an infection. Mild infections can cause low-grade fevers, while more severe infections can cause higher fevers that last longer. Common infections that cause fever include colds, flu, pneumonia, bronchitis, UTIs, teething, and other respiratory infections.

  • Inflammation or Autoimmune Diseases

Inflammatory conditions like rheumatoid arthritis, Crohn’s disease, lupus, and psoriasis can also cause fevers. These fevers can be recurrent or long-term, and they may last for weeks or even months.

  • Cancers and Tumors

Some cancers and tumors can cause fever, which is often accompanied by other symptoms such as fatigue, unexplained weight loss, and night sweats.

  • Heat Exhaustion

If you spend too much time in hot, humid weather, you can get heat exhaustion. This can cause a fever, dizziness, confusion, and dehydration. If you think you have heat exhaustion, get to a cool place and drink plenty of fluids.

  • Side Effects of Medication

Some medications, such as antibiotics, anti-seizure drugs, and some cancer medications, can cause a fever as a side effect. This fever is usually mild and goes away on its own. However, if you have a fever that is high or doesn’t go away, talk to your doctor.

  • Vaccinations

Some vaccines can cause a mild fever. This is usually a sign that the body is building an immune response to the vaccine. Usually fever resolves on its own within few days.

5. Types of Fevers:

Fevers can be categorized based on their duration and pattern:

  • Low-grade fevers range between 98.8°F (37.1°C) and 100.3°F (38°C). They are often caused by mild infections or inflammation.
  • Intermittent fevers come and go. They can last for several days to weeks, and are often associated with malaria.
  • Continuous fevers remain constant above 100.3°F (38°C)for several days. They can be caused by pneumonia or other serious infections.
  • Remittent fevers fluctuate in temperature, but do not return to normal levels.
  • Hyperpyrexia or High Grade Fever is a very high fever of or above 103°F (39.4°C). Such fevers require immediate medical attention and can be life threatening.

6. Symptoms of Fever:

The symptoms of fever can vary depending on the type of fever. Some common symptoms include:

  • Chills
  • Sweating
  • Headache
  • Muscle aches
  • Loss of appetite
  • Irritability
  • Dehydration
  • General weakness

7. Diagnosis of Fever:

A fever is diagnosed by taking a medical history, performing a physical exam, and measuring the patient’s temperature. Other diagnostic tests may be ordered, such as blood work, urine tests, or imaging, depending on the underlying cause of the fever.

8. Home Remedies for Treating Fevers:

Fever is a common symptom of many illnesses, but it can be uncomfortable and even dangerous if it gets too high. Luckily, there are a number of home remedies that can help to reduce fever and alleviate symptoms.

  • Staying Hydrated

Staying hydrated is the key in case of a fever. This means drinking plenty of fluids, such as water, electrolyte-rich drinks, and herbal teas. Fluids help to cool the body down and prevent dehydration, which can make fever worse.

  • Over-the-Counter Medication

If your fever is mild, you may be able to reduce it with over-the-counter medication, such as acetaminophen or ibuprofen. These medications work by reducing inflammation and pain, which can help to lower your body temperature.

  • Rest and Light Exercise

Resting is also important when you have a fever. This gives your body a chance to fight off the infection and recover. Light exercise, such as walking, can also be helpful in some cases.

  • Warm Baths

Taking a warm bath can help to relax the body and reduce temperature. The warm water helps to draw heat away from the body, which can help to lower your fever.

  • Cooling Patches or Cold Sponging

Cooling patches are available in market and that can help reduce fever. Morover, cold sponging at home can help reduce fever.

  • Herbal Remedies

There are also a number of herbal remedies that can help to reduce fever. Some common herbal remedies include peppermint tea, echinacea, and chamomile. These herbs have anti-inflammatory and antipyretic properties, which can help to alleviate symptoms.

9. Medical Treatment of Fevers:

Fever is a common symptom of many illnesses, but it can also be a sign of something more serious. If you have a fever, there are a few medical treatments that can help reduce it and alleviate associated symptoms.

  • Antipyretic medicines like acetaminophen and ibuprofen can help reduce fever and relieve headaches and muscle pain. Paracetamol is by far the most effective medication in symptomatic relief or lowering your body temperature.
  • Antibiotics for treating fever: Antibiotics are used to treat bacterial infections that cause fever. They should only be used when prescribed by a doctor. Most common antibiotics used for certain type of fever caused by infections are:
    • Amoxiclav
    • Azithromycin
    • Ciprofloxacin
    • Levofloxacin
  • Corticosteroids are used to treat autoimmune disorders that cause fever. Any such medications can only be used as per the prescription of the doctor.
  • Hospitalization may be required for persistent or severe fevers and for those who are unable to maintain hydration or have complications.

10. When to See a Doctor?

You should visit a doctor in case of a fever, if:

  • Your fever is high (above 38.3C or 100.94 F )
  • Your fever persists for more than three days
  • You have any underlying medical conditions

11. Lifestyle Changes for Preventing/Reducing Fevers:

There are a number of lifestyle changes that you can make to help prevent or reduce fevers:

  • Get vaccinated against common infections.
  • Practice good hand hygiene by washing your hands often with soap and water.
  • You should take a balanced diet that comprises of fresh fruits, whole grains and fresh vegetables.
  • Maintain a healthy body weight and exercise regularly.
  • Get enough rest and sleep.

12. Common Misconceptions about Fevers:

  • All Fevers are Bad – Dispelling the Myth
  • Mild fevers can serve a purpose in fighting infections and building immunity.
  • A High Fever is Always an Indicator of a Serious Illness
  • High fevers can be a response to infections as well as other related conditions, indicating that the body is fighting the underlying disease.
  • Starve a Fever, Feed a Cold – Separating Fact from Fiction
  • There is no scientific evidence behind this age-old myth, and one should maintain a balanced diet and stay hydrated during the fever.

Frequently Asked Questions (FAQs) About Fever

Q.1 What is a fever?

A fever is when your body temperature goes above normal, usually 100.4°F (38°C) or higher.

Q. 2 What causes a fever?

Fevers are often caused by infections like the flu or a cold, but can also be from other medical conditions or medications.

Q. 3 How is a fever treated?

Rest, drink fluids, and take fever-reducing medications like acetaminophen or ibuprofen.

Q. 4 When should I see a doctor for a fever?

If your fever lasts more than a few days, is very high, or if you’re a young infant with a fever, see a doctor.

Q. 5 Can a fever be dangerous?

High fevers above 104°F (40°C) can be dangerous, so it’s important to treat them promptly.


Fevers are a sign that something is wrong, but they are not a disease in themselves. They can be caused by a wide range of things, including infections, inflammation, and side effects of medications.

If you have a fever, it is important to see a doctor to find out the cause and get treatment. Treatment for fever usually involves taking medication to lower your temperature. In some cases, you may also need to treat the underlying condition that is causing the fever.


Content on this site is written with thorough research and keeping in mind the latest guidelines. However, no content on this site should substitute professional consultation.

Picture of Dr. Jameel

Dr. Jameel

Dr Jameel is a practicing family physician. He writes easy to understand medical blogs to create health awareness and help people to live a healthier life.