It is not rare but is uncommon to have spots remain for life, following pneumonia. This is more likely to happen after infection with one of more than a half-dozen fungi or with tuberculosis (TB) infections. It can also occur after chicken pox pneumonia. There is no practical way to remove these spots. In general, they cause no problems, either with lung function or infection. However, the spots caused by TB or fungi may contain these organisms and thus the potential to re-infect your lungs. They do indicate that you had a lung disease but usually non-specific, since they do not indicate which or what type of lung infection. Save for the possibility of reactivation of the original infection, these spots are harmless, like scars.