Most adults with RSV recover at home with the same basic care you’d use for a bad cold: rest, fluids, and over-the-counter fever and pain relievers. There is no specific antiviral medication routinely prescribed for RSV in adults, so treatment focuses on managing symptoms while the virus runs its course, typically over one to two weeks.
What RSV Feels Like in Adults
RSV in adults usually resembles a heavy cold: congestion, cough, sore throat, low-grade fever, and fatigue. Symptoms typically last two to eight days, though a lingering cough can stick around longer. In otherwise healthy adults, the illness is uncomfortable but manageable. Severe cases, particularly in older adults or those with chronic health conditions, can last longer and may progress to pneumonia or bronchitis.
The virus has a specific affinity for the small airways in your lungs, where it causes swelling and inflammation that can narrow those passages. This is why some people develop wheezing or a tight, persistent cough that outlasts other symptoms. That airway irritation can persist even after your body clears the virus itself.
Home Treatment That Actually Helps
Since there’s no antiviral pill you can take for RSV, the goal at home is comfort and preventing dehydration. Standard over-the-counter pain relievers and fever reducers (acetaminophen or ibuprofen) handle the body aches and fever. A nasal decongestant or saline spray can ease stuffiness, and a humidifier in your bedroom helps keep airways moist, which makes coughing less painful.
Hydration matters more than most people realize. Fever, mouth breathing, and coughing all pull moisture out of your body. Water, broth, and electrolyte drinks are the straightforward fix. If you’re producing a lot of mucus, staying well-hydrated thins it out and makes it easier to clear. Avoid alcohol and caffeine, which work against you by increasing fluid loss.
Propping yourself up with an extra pillow at night can reduce nighttime coughing and congestion. If wheezing becomes noticeable and you already have an inhaler for asthma or another lung condition, use it as prescribed. New wheezing in someone without a history of lung disease is worth a call to your doctor.
When RSV Requires Hospital Care
A small percentage of adults, particularly those over 65 or with underlying lung or heart conditions, develop RSV severe enough to need hospital treatment. Warning signs include difficulty breathing, a bluish tint to the lips or fingernails, rapid breathing, or a significant drop in how much you’re drinking.
Hospital treatment for RSV is still supportive rather than curative. It centers on humidified oxygen to help your lungs work more efficiently, IV fluids if you’re dehydrated or unable to drink, and in rare cases, mechanical ventilation. Research published in CHEST found that compared with similar respiratory viruses, RSV carries higher risks for ICU admission and the need for mechanical ventilation in adults with severe community-acquired pneumonia. About one in four of those hospitalized patients also had a bacterial co-infection alongside the virus, which may require antibiotics on top of the RSV support.
Why Antivirals Aren’t Standard for Adults
You might wonder why doctors don’t just prescribe an antiviral. Ribavirin, the one antiviral approved for RSV, is only indicated for hospitalized infants and children, delivered as an inhaled mist. It is not routinely used in adults. No oral antiviral for RSV in adults has been approved, so treatment remains symptom-focused regardless of severity. Clinical trials are ongoing for new antiviral options, but nothing has changed the standard of care yet.
How RSV Is Diagnosed
If your doctor suspects RSV rather than the flu or COVID-19, they’ll likely use one of two tests. Rapid antigen tests check a nasal swab for viral proteins and return results in under an hour, but they’re less sensitive in adults, who tend to carry lower amounts of the virus in their noses than young children do. RT-PCR tests (the same type widely used during the COVID-19 pandemic) detect genetic material from the virus and are more accurate for adults because they can pick up smaller viral quantities.
Some providers order a respiratory pathogen panel, which screens for RSV, influenza, and COVID-19 simultaneously. Timing matters: samples taken in the first few days of symptoms are the most reliable. A negative result doesn’t completely rule RSV out, since the viral load in your nose drops as the illness progresses.
Who Faces the Greatest Risk
RSV hits hardest in adults 75 and older and in people between 50 and 74 who have certain chronic conditions. The CDC’s list of risk factors includes chronic lung diseases like COPD, emphysema, and asthma; heart conditions such as heart failure or coronary artery disease; diabetes with organ complications; chronic kidney disease requiring dialysis; chronic liver disease like cirrhosis; severe obesity (BMI of 40 or higher); moderate to severe immune compromise; and neurologic conditions that weaken the muscles involved in breathing or swallowing. Living in a nursing home also qualifies as a risk factor.
For these groups, RSV is not just a nuisance cold. The virus can trigger a flare of underlying lung disease, provoke heart failure exacerbations, or open the door to secondary bacterial pneumonia. If you fall into any of these categories and develop cold symptoms during RSV season (typically fall through spring), it’s worth getting tested early so your care team can monitor you closely.
RSV Vaccines for Adults
Three RSV vaccines are now available for adults: Arexvy (GSK), Abrysvo (Pfizer), and mResvia (Moderna). The CDC recommends a single dose for all adults 75 and older and for adults 50 to 74 who have increased risk of severe RSV illness based on the conditions listed above. There is no preference among the three vaccines. Two of them, Abrysvo and mResvia, are also approved for high-risk adults as young as 18.
The vaccine is a one-time dose, not an annual shot. If you’re in the recommended age range or have qualifying health conditions, getting vaccinated before RSV season is the most effective way to reduce your chances of a severe case. The vaccine won’t prevent every infection, but it significantly lowers the risk of the kind that lands you in the hospital.
Recovery Timeline
Most healthy adults feel noticeably better within a week, with full recovery by about two weeks. A dry cough can linger for several weeks after the other symptoms resolve, which is a normal part of airway healing, not a sign that the infection is still active. Severe cases, especially those requiring hospitalization, can take longer, and the timeline depends heavily on your underlying health.
During recovery, pay attention to any worsening after initial improvement. A fever that returns after going away, new chest pain, or increasing shortness of breath could signal a secondary bacterial infection on top of the original RSV. That pattern, feeling better then worse, is the one worth acting on promptly.