Can RSV Cause Vomiting in Adults? Symptoms & Care

Respiratory Syncytial Virus (RSV) is a common respiratory virus primarily affecting the lungs and airways. While often associated with severe illness in infants and young children, RSV can also infect adults. Many adults experience mild, cold-like symptoms, but for some, the illness can be more significant.

Understanding RSV Symptoms in Adults

Adults infected with RSV typically develop symptoms similar to those of a common cold, which usually appear four to six days after exposure. Common indicators include cough, sneezing, runny nose, sore throat, fever, headache, and congestion. Symptoms usually last two to eight days, though they can persist longer.

While respiratory symptoms are prominent, vomiting is not a typical symptom of RSV in adults, unlike in children. However, it can occur, potentially linked to severe coughing fits or post-nasal drip. This symptom is less frequently reported compared to other respiratory viruses like influenza or COVID-19.

Reasons for Vomiting with RSV

Vomiting in adults with RSV, though not universal, can stem from several physiological responses. Severe or persistent coughing is a common reason, as intense coughing can trigger the gag reflex and lead to vomiting. This mechanical irritation of the throat and airways can induce vomiting.

Another contributing factor is post-nasal drip, where excess mucus from the nasal passages drains down the back of the throat. When this mucus is swallowed, it can irritate the stomach lining, potentially causing nausea and vomiting. The body’s systemic response to a viral infection, including inflammation or fever, can also induce a feeling of malaise and nausea. RSV has also been detected in stool samples, suggesting a possible direct viral impact on the digestive system.

When to Consult a Doctor

While many adults recover from RSV at home, medical consultation is appropriate if vomiting is present. Seek medical attention for signs of dehydration, such as reduced urination, dry mouth, or light-headedness, which can result from persistent vomiting and insufficient fluid intake. Difficulty breathing, shortness of breath, a high or persistent fever, or a severe, worsening cough also warrant contacting a healthcare provider.

Individuals with underlying health conditions, such as those over 65, with chronic heart or lung diseases (e.g., asthma, COPD), or a weakened immune system, face a higher risk of severe RSV complications and should seek prompt medical advice if symptoms worsen. A blue or grayish tint to the skin, lips, or nail beds indicates a medical emergency requiring immediate attention.

Home Care for RSV and Vomiting

Managing RSV symptoms, including vomiting, at home primarily focuses on supportive care to alleviate discomfort and promote recovery. Staying well-hydrated is important, particularly when vomiting occurs, to prevent dehydration. Sip small amounts of clear fluids frequently, such as water, broth, or oral rehydration solutions. Rest is also important, allowing the body to conserve energy and recover.

Over-the-counter medications can help manage symptoms like fever and pain. Acetaminophen or ibuprofen can be used to reduce fever and body aches. If vomiting is present, consuming a bland diet of easily digestible foods may help reduce stomach upset. Avoiding irritants like smoke or strong odors also contributes to comfort during recovery.