Hello
You are an asthmatic patient and taking treatment for this .
There are certain triggering factors ( causative ) which are usually responsible for asthma , these are , dust mite, pollen ,mold, FUMES, SMOKE SMOG, HUMIDITY EXHAUSTION , sudden fall & rise of temperature , humidity .
So you know your triggering factors , so , if possible get rid of these triggering factors.
When some one get contact with these allergen , there develop
bronchoconstriction , hence
bronchospasm and whistling sound during inhalation or exhalation ( as in your case). This allergy causes ( produces )
shortness of breath ,
wheezing ,
chest tightness and cough mostly early in the morning.
So the best way is to avoid these allergens.
When such patient visit my clinic I advise them to take monteleukast+ bambuterol tablet once or twice in day till complete relief.
Hot coffee and steam inhalation also provided relief.
Hope this information will help you.