How Long Does Flu-Related Fatigue Last?

January 26, 2024

Getting the flu can be an exhausting experience, with symptoms ranging from fever and body aches to a feeling of tiredness that can linger after other symptoms subside. Understanding the duration of flu-related fatigue is crucial for individuals seeking a prompt recovery and return to their regular activities. In this blog, we’ll explore how long the flu lasts and when it might be necessary to seek medical attention for lingering or worsening symptoms, like fatigue.

For same-day flu treatment, visit the walk-in clinic at AFC Urgent Care Denver Leetsdale. Our urgent care center is open seven days a week and facilitates walk-in patients, meaning no appointment is required. If you’d like to plan your visit in advance, you can pre-register your visit below.

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Influenza: Causes and Symptoms

The flu is a highly contagious respiratory infection caused by influenza viruses. These viruses can undergo changes, leading to seasonal flu outbreaks and the need for annual flu vaccination. It affects the nose, throat, and sometimes the lungs, leading to a range of symptoms. Understanding the causes and symptoms of the flu is crucial for prompt recognition and effective management.

The most common flu symptoms include:

  • Sudden onset of high fever
  • Persistent cough, either dry or productive
  • Sore throat and difficulty swallowing
  • Headaches ranging from mild to severe.
  • Chills and shivering
  • Nasal congestion and sneezing
  • Fatigue and weakness

The Duration of Flu-Related Fatigue

The flu is notorious for its ability to leave individuals feeling drained and fatigued. While the intensity and duration of fatigue can vary from person to person, it is a common symptom experienced during and after a flu infection. Unlike the typical tiredness we may feel in our daily lives, flu-related fatigue can be more profound, severe, and persistent. The duration of this exhaustion can be influenced by several factors, including the individual’s overall health, severity of the flu infection, and the supportive care followed during the recovery period. In most cases, flu-related fatigue can last for a few days to several weeks after the acute phase of the illness.

1. Acute Phase: During the acute phase of the flu, which usually lasts about one to two weeks, individuals may experience intense fatigue along with other symptoms like cough, fever, and body aches. During this period, the immune system works hard to fight off the virus.

2. Post-Acute Phase: The post-acute phase is when fatigue tends to persist. It’s not uncommon for individuals to feel tired, weak, and lacking in energy during this time. Most people start to notice an improvement in their energy levels within two to three weeks after the onset of flu symptoms.

When to Seek Urgent Care

The most effective way to prevent the flu is through vaccination. Annual flu shots are recommended for individuals six months and older. Additionally, practicing good hygiene and avoiding close contact with sick people can help prevent the spread of the virus. If you or someone you know develops flu-like symptoms, or lingering fatigue, it’s advisable to seek medical attention– especially for those at higher risk of complications. Guidance from a healthcare provider can help rule out any underlying complications that may be present. Antiviral medications may be prescribed to reduce the severity and duration of symptoms if started early in the course of illness. Be sure to focus on supportive care– plenty of hydration and rest– to aid recovery. 

Get Walk-in Flu Treatment at AFC Urgent Care Denver Leetsdale

While flu-related fatigue can be challenging, understanding that it's a typical part of the recovery process is essential. Come visit the walk-in clinic at AFC Urgent Care Denver Leetsdale for a full medical evaluation, diagnosis, and treatment plan. Our providers specialize in treating a wide range of illnesses– including the common cold, flu, RSV, strep and more. The clinic is open seven days a week and operates on a walk-in basis– just stop by at your convenience! We accept most health insurance plans and offer cost-effective options for self-paying patients. If you have any additional questions about flu symptoms or treatment, please contact our medical team directly at (303) 935-1000.

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