Dr. Raul Valor, Pulmonologist with Baptist Health South Florida, says when people have asthma, there is a constant inflammation in the airways. He explains it is always there and requires active treatment in order to keep the disease under control.

He points out that part of the disease is excessive mucus production. Asthma affects the entire airway and can be classified according to its severity and persistence as mild, moderate, severe, intermittent or persistent.