What you need to know about prolonged flu symptoms

Millions of individuals all over the globe acquire the flu on a yearly basis. In most of these cases, an acute illness typically resolves within 2-5 days, although the respiratory symptoms such as sore throat and cough can last for up to two weeks. Some of the symptoms of flu can last longer and some individuals are more likely than others to suffer from prolonged flu symptoms. If you want to learn more about these extended flu symptoms and the steps to take, read here.


Fever that is caused by flu typically peaks within 24 hours right after gradual reductions over 2-3 days. The fever that lasts longer than seven days and cases that are accompanied by seizures or delirium must be properly assessed by a doctor.

Muscle pain and weakness


The muscle pain and weakness is one of the persistent symptoms of flu.

The muscle pain and weakness is one of the persistent symptoms of flu. The elderly and those who are severely sick would require several weeks before they are able to return to previous level of activity. Those who are experiencing severe pain as well as in areas other than the lower back and leg as well as those who are unable to perform activities of daily living such as walking must be properly assessed by a doctor.

Respiratory symptoms

Based on a study conducted, it was discovered that cough is one of the most persistent symptoms of flu. The other respiratory symptoms of flu such as runny nose, sore throat and nasal congestion tend to start later and end sooner than cough. Individuals who suffer from the respiratory symptoms that last longer than 2 weeks, disrupt with breathing and produce excess amounts of bloody, greenish-yellow sputum must be assessed by a doctor for any complications of flu. Prompt treatment is a must to help prevent complications from developing.

Flu-related complications

It is important to note that flu oftentimes sets the stage for complications such as ear infections, pneumonia, brain inflammation and other issues that can drastically extend the recovery period. The complications typically present as an abrupt deterioration or new symptoms in an individual who was previously in the state of improvement. Even though anyone can suffer from the complications of flu, they usually occur among children below 5 years old, the elderly, pregnant women and those who have other medical issues.

Worsening of chronic diseases

Flu can worsen health conditions such as heart, lung and kidney diseases. Individuals who have medical issues often require medication and might even need new therapies such as mechanical ventilation or supplemental oxygen. These individuals must expect a longer recovery period and in some cases, might not be able to return to previous baseline anymore.

When the symptoms of flu last longer than usual, a doctor should be consulted as soon as possible to prevent any complications from developing.