Wheezing occurs due to the mild resistance to the air flow through the small bronchioles ( airway tubes).
This can be a sign of early onset chronic bronchitis.
Chronic cough or even shortness of breath with strenuous activities ( previously no problem) can be other symptoms.
Even 3 years worth of smoking and e cigs also can precipitate this.
The diagnosis is confirmed by a pulmonary function test.
Bronchodilators like albuterol oral inhaler can be used as needed basis.
Long acting steroid like Fluticasone and long acting anti cholinergic medication called Tiotropium inhaler are shown to prevent the progression of the disease.
Also daily exercise and staying away from any fumes will gradually help to retain almost normal lung function over time.
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