Conditions

What are the symptoms of cold and rsv?

Reviewed by Bellaire ER Medical Team, Board-Certified Emergency PhysiciansUpdated July 4, 2026

Colds and RSV share cold-like symptoms: runny or stuffy nose, sneezing, sore throat, cough, and low-grade fever. RSV can go further and reach the lower airways, causing wheezing, fast or labored breathing, and poor feeding in infants.

Colds and RSV (respiratory syncytial virus) begin almost identically, which is why they are easy to confuse. The difference is where the infection travels: a cold stays in the upper airway, while RSV can move down into the lungs.

Common Upper-Airway Symptoms

These overlap between a cold and early RSV and are usually not worrisome on their own:

  • Runny or stuffy nose from inflamed, mucus-producing nasal passages
  • Sneezing and a mild headache, common in the first days
  • Sore or scratchy throat from the infection and postnasal drip
  • Cough, usually dry at first, sometimes turning wet or lingering a week or two
  • Low-grade fever, more common and sometimes higher with RSV, especially in young children

Symptoms That Suggest RSV Is Reaching the Lungs

When the infection moves into the lower airways, the symptom picture changes. These deserve closer attention:

  • Wheezing or noisy breathing — a whistling or rattling sound
  • Fast, labored, or shallow breathing, or nostrils flaring with each breath
  • The chest or ribs pulling in with each breath (retractions)
  • In infants: poor feeding or fewer wet diapers, a sign a baby is tiring or getting dehydrated

Dangerous Symptoms — What They Mean

Some symptoms signal that oxygen is dropping and the body is struggling: bluish or gray lips, tongue, or skin; grunting; pauses in breathing; or a baby who is unusually sleepy, limp, or too breathless to feed. In older adults and people with asthma, COPD, or heart failure, worsening cough, chest tightness, and shortness of breath can mean RSV is triggering a serious flare-up or pneumonia. These are not typical cold symptoms and mean it is time to be seen.

How the Timeline Usually Runs

Colds tend to improve within about 7 to 10 days, though a mild cough can linger. RSV often peaks around days 3 to 5 — the window when breathing problems in infants are most likely to show up.

For a complete guide, see our cold and RSV page. Bellaire ER is open 24/7 for walk-ins at 5302 Bellaire Blvd, or call (713) 660-0001 with questions about your symptoms.

Not sure if it’s an emergency? Bellaire ER is open 24/7 with board-certified physicians — walk in or call anytime, or start a telemedicine visit.