Know More About Viral Fever – Symptoms & Precautions


By Dr Manjusha Agarwal in Internal Medicine

Viral fever in India is no longer something that is unfamiliar to most of us, especially in light of the coronavirus epidemic that has plagued us for the past few years. However, it is critical to understand how viruses cause viral fever and other body discomforts. Viruses are infectious agents that can cause problems in any part of your body, including your brain, skin, lungs, GI system, liver, and so on.

In this blog, we will understand what is viral fever its signs and symptoms, and more. Viral fever duration can be long-lasting. Depending on the type, they are caused by several viruses, including influenza viruses, rhinoviruses, and adenoviruses. The viral fever temperature varies, focusing on symptom management and assisting the body's healing process.

What causes a viral fever?

It is very important to understand the root cause of viral fevers. Though it is due to viruses, certain preventive measures can be taken to avoid major viral fevers. Certain viruses, like Influenza viruses, rhinoviruses, adenoviruses, flaviviruses, and coronaviruses, are among the most common attackers. 

Seasonal epidemics are caused by influenza viruses, whereas ordinary colds are caused by rhinoviruses. Adenoviruses can cause respiratory and gastrointestinal diseases, but flaviviruses like dengue virus and chikungunya virus are spread by mosquitoes. Coronaviruses, particularly SARS-CoV-2, can also induce viral fevers. The tropical temperature, population density, and specific virus strains circulating in a location all contribute to the incidence of viral fevers.

On the other hand, Viral fever occurs when the body releases pyrogens as a natural defence mechanism against viral antigens. The causes of viral fever may vary depending on the type. However, some typical causes include consuming contaminated food or beverages, and inhaling air droplets when a person with viral fever coughs or sneezes nearby. 

Moreover, coming into contact with viruses carried by animals or insects, results in illnesses like rabies or fever, and exchanging body fluids through needle pricks or blood transfusions. Most importantly, lack of immunity is one of the most common reasons for viral fever in children and the elderly. It is better to take precautions and treat the signs and symptoms they notice

What are the symptoms of a viral fever?

The viral fever symptoms can include high body temperature, fatigue, headache, body aches, and respiratory symptoms like cough and sore throat.

There are various causes of viral fever, including exposure to infected individuals, ingestion of contaminated food or water, or transmission through vectors like mosquitoes.

The reason for viral fever is the invasion of the body by viral pathogens, leading to an immune response that includes an elevated body temperature.

The viral fever duration in adults can vary, but most cases last for a few days to a week, depending on the specific virus and individual immune response.

How many days viral fever lasts depends on the virus and individual factors. Generally, viral fevers in adults resolve within a week, but it can be longer in some cases. Here are the most common signs and symptoms of viral fever can vary depending on the specific virus and individual factors. 

Fever: Viral fever temperature can range from mild to high-grade, typically above 100.4°F (38°C). The severity of the fever may vary depending on the specific virus and individual immune response.

Headache: During a viral fever, many people get headaches. The intensity and location of the headache can fluctuate. 

Chest congestion: Excess mucus or inflammation in the airways causes a heaviness or tightness in the chest.

Sore throat: Pain, discomfort, or irritation in the throat, which is sometimes aggravated by swallowing or talking.

Burning sensation in eyes: A feeling of discomfort, irritation, or a burning sensation in the eyes.

Cough: A reflex action to clear the airways, characterized by repetitive expulsion of air from the lungs.

Skin rashes: Abnormal changes in the skin's appearance, such as redness, itching, bumps, or blisters.

Diarrhea: Frequent and loose bowel movements, often accompanied by an increased urgency to use the restroom.

Nausea: Feeling of queasiness or discomfort in the stomach, often accompanied by an inclination to vomit.

Vomiting: Forceful expulsion of stomach contents through the mouth, often preceded by nausea or an upset stomach.

Body aches: Muscle aches and joint pains are common symptoms of viral fevers. They can affect different parts of the body and cause discomfort.

Fatigue: Feeling tired, weak, or exhausted is a typical symptom accompanying viral fevers. The immune response and the body's efforts to fight off the infection can lead to increased fatigue levels.

Respiratory symptoms: Viral fevers may be accompanied by respiratory symptoms such as a cough, sore throat, runny or stuffy nose, and sneezing. These symptoms can vary in severity depending on the specific virus.

Gastrointestinal symptoms: Some viral fevers can cause gastrointestinal symptoms like nausea, vomiting, or diarrhea. However, not all viral infections present with gastrointestinal symptoms.

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Who is prone to viral fever?

The reason of viral fever is an infection produced by a range of viruses entering the body and stimulating an immune response, resulting in a raised body temperature. The viral fever treatment largely focuses on symptom management and supporting the body's natural healing process. 

The viral fever duration can vary depending on the specific virus and individual factors. In most cases, viral fevers last for a few days to a week, but it can be longer in certain situations. The difference between corona and viral fever lies in the specific virus causing the illness. Corona refers to COVID-19, caused by the SARS-CoV-2 virus, while viral fever is a more general term encompassing fevers caused by various viral infections.

Viral fever temperature typically ranges from mild to high-grade, with temperatures usually above 100.4°F (38°C). The severity of the fever can vary depending on the specific virus and individual immune response. Here is a list of individuals who are more prone to viral fever:

  • Individuals with reduced immune systems, such as those suffering from chronic illnesses or receiving immunosuppressive therapies. 
  • Young children and newborns with developing immune systems. Elderly people, as ageing can cause a natural reduction in immunological function.
  • Individuals who come into touch with infected people, increasing the possibility of transmission. Individuals who have not received or have received insufficient immunisation.
  • Those who live in overcrowded places with insufficient sanitation and hygiene. People who have been exposed to vectors carrying viral illnesses, such as mosquitos carrying the dengue or chikungunya viruses. Individuals who have travelled to areas where viral illnesses are common.
  • Individuals working in high-risk areas, such as healthcare personnel. Those who have underlying medical issues that weaken the immune system.

How is a viral fever diagnosed?

A viral fever is diagnosed through a thorough review of viral fever temperature, medical history, and physical examination. The doctor may prescribe additional tests, such as blood tests, throat swabs, or specific viral tests, to confirm the causes of viral fever and rule out other potential causes. 

Body temperature, viral fever symptoms, and response to treatment are all important components of the diagnostic procedure. Moreover, the viral fever duration is also taken into consideration by the doctor. To get more information for diagnosis and therapy, they will analyse how long the fever has lasted or how many days it has been present.

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How is Viral Fever Treatment Usually Given?

Viral fever treatment fevers relies mostly on symptom management and promoting the body's natural healing process. In some circumstances, antiviral drugs may be administered. Antibiotics, because they primarily target bacteria, are useless against viral infections. The treatment for viral fevers relies mostly on symptom management and promoting the body's natural healing process. Here are some important characteristics of viral fever treatment.

Rest and Hydration: Getting enough rest is critical for the body to recuperate and mend. Adequate hydration is also necessary to avoid dehydration, especially if there are other symptoms present, such as sweating or gastrointestinal difficulties. Hydration can be maintained by drinking fluids such as water, herbal teas, clear broths, and electrolyte solutions.

Fever-Reducing Medications: Over-the-counter fever-reducing drugs such as acetaminophen (paracetamol) or ibuprofen can be used to lower fever and discomfort. It is critical to follow the suggested dosage and directions and to consult a healthcare expert if there are any specific concerns or if the fever persists after medication.

Fluid Intake and Nutrition: It is vital to stay hydrated. A nutritious diet rich in fruits and vegetables can also serve to support the immune system and aid in the recovery process.

Avoiding Overexertion: Resting and avoiding stressful tasks can help save energy and allow the body to focus on curing the viral disease. Physical exercise should be avoided until the symptoms are no longer present.

Antiviral Medications: Antiviral medications can cure specific viral infections by stopping virus replication and so lowering the severity of the infection. However, not all viral infections have specialised therapies, and their use is determined by the virus and the individual. Because antibiotics are ineffective against viral infections, they should not be used to treat viral fevers unless there is a secondary bacterial infection present.

The length of a viral fever varies according to the virus, the individual's immunological response, and overall health. The majority of viral fevers in adults last a few days to a week. However, if symptoms persist or worsen, get medical assistance to rule out any problems or secondary infections.

While the methods listed above can assist manage symptoms and aid in recovery, it is critical to seek the advice and treatment of a healthcare expert. They can provide an accurate diagnosis, assess the severity of the sickness, and recommend the best treatment options depending on the specific viral infection and individual health factors.

How Many Days Viral Fever Last?

If you are wondering how many days viral fever lasts? The duration of a viral fever may vary depending on the infection and the individual's immune response. Typically, viral fevers persist for several days to a week. However, certain viral infections can last for months, especially if complications occur or the immune system is compromised. It is advisable to monitor symptoms closely and seek medical treatment if the fever persists or worsens.

The duration of a viral fever can vary based on types of viral fever with the specific virus causing the fever, the individual's overall health, and the effectiveness of treatment efforts. Typically, viral fevers last a few days to a week. Most viral fevers resolve within 3 to 7 days, with symptoms gradually improving over time.

During this period, it is important to get enough rest, stay hydrated, and manage symptoms with over-the-counter drugs as prescribed by a doctor. If the viral fever temperature lasts more than a week or is accompanied by severe symptoms, it is best to consult a doctor for further evaluation and appropriate treatment.

When Should I see a doctor?

While most viral fever in India can be treated at home with self-care techniques, there are some instances where medical treatment is required. Here are some reasons to see a doctor:

High or Prolonged Fever: If you or a loved one develops a viral fever temperature of high-grade fever that does not react to over-the-counter fever reducers or lasts for a lengthy period of time, see a doctor. High or persistent fevers may indicate a more serious infection or underlying health problem that requires medical evaluation and treatment.

Severe Symptoms: In addition to the fever, you should seek emergency medical care if you have difficulty breathing, chest discomfort, severe headache, stiff neck, confusion, convulsions, or severe abdominal pain. These symptoms could signal a problem or a more serious underlying ailment that requires prompt evaluation and viral fever treatment.

Worsening Condition: If your illness worsens despite home care, or if new symptoms appear, see a doctor. This includes symptoms such as a viral fever treatment, persistent cough, a worsening sore throat, substantial exhaustion, or any other alarming signals that may suggest a deteriorating illness.

Underlying Health Conditions: Individuals with pre-existing medical disorders, compromised immune systems, or chronic illnesses should visit their healthcare professional if they get a viral fever. These people are at a higher risk of problems and may require specialised care.

Travel History or Exposure: If you have recently travelled to a region with a high incidence of viral infections or have been in close contact with someone diagnosed with a viral illness, it is advisable to inform your doctor. They can assess the need for specific testing, monitoring, or preventive measures.


Understanding the numerous types of viruses, how to treat and prevent them, and the importance of immunisations is vital. Furthermore, good hygiene practices such as frequent hand washing, covering one's mouth and nose when coughing or sneezing, and avoiding direct contact with sick people can help prevent viral infections from spreading. It is vital to keep up with the latest viral outbreak news and to heed the recommendations of healthcare professionals.

You can contact the nearest branches of Global Hospital to get medical guidance and support with your viral fever. They can offer suitable information and treatment alternatives based on your specific scenario. Seek medical attention if you have any concerns about your symptoms or if they continue or worsen despite home care efforts. Based on your individual situation, a healthcare professional can assess your condition, make an accurate diagnosis, and recommend the best viral fever treatment.

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