Abstract
The concept of cure for such kind of chronic diseases was discussed because of no complete reconstruction of lung tissue and recovery of physiological functions to normal value could be expected.
As no expectation of complete cure was observed, the treatments of such chronic diseases was considered in two points, prevention of unexpected relapse, and symptomatic treatments for acute aggravation.
As a refer to such concept, the following three groups of the factors were considered to treat COLD;
The first, personal backgrounds, age, sex, occupation, and the kind, length, stage of the disease.
The second, environmental factors, smoking habit and air pollution.
The third, condition of medical facilities, whether the chest specialist could treat the patients and or well personnel and equipped intensive respiratory care unit could be available.