A fever is a common symptom of respiratory syncytial virus (RSV), a respiratory infection that can affect people of all ages. While RSV often causes mild, cold-like symptoms in healthy adults and older children, it can lead to more serious illness in infants, older adults, and people with certain medical conditions. If you or your child has RSV, you may be wondering how long the fever will last and when it is time to seek medical attention. The answer depends on age, overall health, and how the infection progresses. Keep reading to learn more!
For a same-day RSV evaluation and treatment plan, visit the walk-in clinic at AFC Urgent Care Denver Sloan's Lake. Our center is conveniently located at 3790 W. Colfax Ave in Denver, CO. Just walk in or plan your visit in advance by booking below!
Schedule NowHow Long Does a Fever Last With RSV?
A fever associated with RSV typically lasts a few days, often around 2 to 4 days. However, symptoms can vary from person to person, and not everyone with RSV develops a fever. RSV symptoms usually begin around 4 to 6 days after exposure. Other symptoms may include a runny or stuffy nose, coughing, sneezing, decreased appetite, and fatigue. In some cases, especially in infants, RSV can cause wheezing or difficulty breathing. While the fever may improve within several days, other symptoms can last longer. Coughing and congestion may persist for 1 to 2 weeks or more as the body recovers. If a fever continues beyond 3 to 4 days, returns after going away, or is accompanied by worsening symptoms, contact a healthcare provider for an evaluation. A prolonged or recurring fever may indicate a complication or another infection.
What Can Affect How Long an RSV Fever Lasts?
Several factors can influence the duration and severity of an RSV fever:
- Age: Infants, especially those younger than 6 months, may develop more serious RSV complications. Older adults can also be at greater risk of severe illness.
- Overall health: People with weakened immune systems or chronic heart or lung conditions may experience a more complicated recovery.
- Severity of the infection: Mild RSV infections may cause little or no fever, while more significant respiratory illness can involve additional symptoms and a longer recovery.
- Secondary infections: RSV can sometimes lead to complications such as ear infections or pneumonia, which may cause a fever to persist or return.
Because RSV symptoms overlap with those of the flu, COVID-19, and other respiratory infections, it can be difficult to determine the cause based on your symptoms alone. A healthcare provider can help assess your symptoms and determine whether testing or additional treatment is needed.
When is an RSV Fever a Reason to Visit Urgent Care?
Many RSV infections can be managed at home with rest, fluids, and symptom relief. However, certain symptoms warrant medical attention. Consider visiting an urgent care center if you or your child has a fever that lasts longer than expected, symptoms that worsen instead of improve, persistent ear pain, or signs of dehydration, such as reduced urination or difficulty keeping fluids down. Seek prompt medical attention for an infant or young child with a temperature of 100.4°F or higher. Get emergency medical care immediately if someone with suspected RSV has difficulty breathing, severe chest retractions, or other signs of severe illness. Don't wait for a fever to reach a certain temperature if breathing problems occur.
How Can You Manage an RSV Fever at Home?
For mild RSV symptoms, supportive care can help you or your child stay comfortable while recovering:
- Drink water frequently: Water, broth, and other fluids can help prevent dehydration
- Get adequate rest: Rest gives your body time to naturally recover
- Use fever medication safely: Acetaminophen or ibuprofen may help reduce discomfort when appropriate for the person's age and health
- Try a clean cool-mist humidifier: This can help ease congestion and coughing
- Monitor symptoms: Keep track of the fever, breathing, fluid intake, and overall energy level
Antibiotics do not treat RSV because it is caused by a virus. Most people recover with supportive care, although some high-risk patients may need additional medical support.
Visit AFC Urgent Care Denver Sloan's Lake For Same-Day RSV Testing & Treatment
An RSV fever usually improves within a few days, but symptoms can vary depending on age and overall health. If a fever persists, returns after improving, or occurs alongside worsening symptoms, it's important to have the illness evaluated. At AFC Urgent Care Denver Sloan's Lake, our healthcare providers can assess fever and respiratory symptoms, determine whether testing is needed, and help you understand the next steps for recovery. If you're concerned about an ongoing fever or worsening RSV symptoms, don't hesitate to seek medical care.
We're open every day of the week to diagnose your condition and provide the treatment needed to help you recover as quickly as possible. Most health insurance plans are accepted and cost-effective options are available for self-paying patients. Visit us today or call us directly at (303) 480-1000 with questions.