1 Characteristics of Treacher Collins syndrome include: 2  eyes that slant downward, 3  very few eyelashes and a notch in the lower eyelids (colomboma eye), and. 4  ears that are absent or unusually formed. 5  Some affected individuals may have hearing loss).
Since productive cough is usually the manifestation of an underlying condition, if left untreated, the condition may worsen leading to multiple complications. For instance, a lung infection might spread to organs and damage them, a patient with asthma or COPD may develop difficulty in breathing etc.
Don't suppress a productive cough too much, unless it is keeping you from getting enough rest. Coughing is useful because it brings up mucus from the lungs and helps prevent bacterial infections. People with asthma and other lung diseases need to cough.