01/23/2026
Most symptoms associated with common respiratory illnesses will resolve within a couple of days. Yet the cough that often accompanies colds, flu, COVID and RSV can linger for weeks.
During the height of the winter respiratory season, a lingering cough could also be the sign of a new illness.
“If you have fevers, chills, if you are short of breath, are bringing things up when you cough, or you notice that you don’t have the breathing stamina that you used to, this could be a sign of a pneumonia, and you should see a licensed healthcare professional to ensure that there isn’t something beyond a viral cold that is causing your symptoms,” said Melanie Raffoul, MD, chief medical officer, Yale New Haven Health Urgent Care.
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