BALTIMORE —

People are hearing more coughing this time of year. So, how do we know when is a cough concerning?

Dr. Albert Polito, the director of the Lung Center at the Mercy Medical Center, explained the signs that could mean a cough is something more serious, particularly because respiratory illnesses thrive this time of the year.

"Cough is one of the most common symptoms for any lung condition, cough and shortness of breath. So, lots of things cause cough. People get bronchitis. They get a cold. These are the most common things to do it. Cough that sort of persists for a little bit can be acid reflux. Could be asthma or COPD. Can even be a post-seasonal drip like allergies," Polito told WBAL-TV 11 News.

A cough may be from dry air or a cold, but don't ignore it in the long-term.

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