Cold,ear infection,alternative dry cough and wet cough for a month.chest xray showed clear lungs,chronic appearing lung scarring but no pnuemonia.smoker.urgent care doctor suggested to see pulmonary specialist.what does this mean?is scar a problem?

Nothing specific: The x-ray is really just a good screening tool and sometimes picks up old issues with little if any importance but if never seen before lead to more testing to make sure no treatment is needed. Smokers can have "dirty lungs" as can asthmatics.The term "scar" is a gestimate. It might be an old calcified lymph node or something worrisome.Urgent care is not the venue to pursue a head scratcher.

Emphysema?: In a smoker, emphysema would always be a concern. And even in the absence of smoking, conditions such as pulmonary fibrosis could be present, Regardless, a consult with a Pulmonologist is in order, yes.