Hi thanks for contacting HCM... The tablet acelast is bronchodilator drug. So by cold or moist wave if you have inflammatory bronchial swelling then this drug helpful.... Here first you have to check for any restrictive or obstructive lung condition by pulmonary function test. It will distinguish between two.. Chances of COPD or asthma or fibrotic lung disease will be ruled out. Chest x ray if needed done.... Regular exercise and yoga useful for maitaining lung health.... Cardiorespi exercise like running , swimming also useful.... Take care... You can discuss this with your doc... Dr.Parth