There are many cases where triggers cannot be identified, even after a thorough investigation.
Asthma Treatment
Knowing what provokes an asthma attack is critically important in prevention, but it’s often difficult or impractical to avoid contact with triggering irritants. Today, however, doctors can prescribe drugs to lessen the risk of acute attacks after exposure to an offending irritant, as well as halt attacks that can’t be prevented.
The drugs used to treat asthma fall into two broad categories: controllers to prevent acute attacks and relievers that check acute symptoms when they occur. Some drugs do both.
In light of mounting evidence that asthma is fundamentally an inflammatory disease, asthma authorities today regard inhaled corticosteroids–marketed under numerous brand names as the most effective agents for controlling airway inflammation and thus preventing acute asthma attacks. Corticosteroids in pill or tablet form and in liquid form for children are prescribed long-term for some patients with severe asthma, or short-term for patients with a serious asthma episode.
Bronchodilators work to help open the breathing tubes (bronchi), but do not treat the underlying inflammation.
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