Thanks for your question on Health Care Magic.
I can understand your situation and problem.
You had inhalation
lung injury. Mowing of lawn can produce tiny particles in air and when we inhale them, they cause irritation and hence in the airways. These produce
bronchitis.
And this is the reason for coughing and
shortness of breath after mowing of lawn.
Best treatment is stoppage of exposure and inhale fresh air. Usually this is sufficient.
But In severe cases inhaled bronchodilators and inhaled corticosteroid (ICS) are given. Antihistamine and anti inflammatory drugs are also useful in this.
In severe cases, with treatment usual time of recovery is 7-10 days.
So in my opinion, you should continue drugs for 7-10 days. Don't worry, you will definitely improve.
Hope I have solved your query.
Wish you good health. Thanks.