|Irritant-induced asthma affects about one-fifth of workers with the diagnosis of 'occupational asthma'. There are believed to be two types of irritant-induced asthma. The treatment of RADS is similar to the treatment afforded patients suffering from an acute inhalational injury. Aerosolized bronchodilators are essential for treating acute bronchoconstriction. Likely, oral corticosteroids are not effective. There is no human study showing efficacy of oral corticosteroids in the treatment of RADS. Inhaled steroids have been found effective in reducing airway hyperresponsiveness in a case considered to be RADS. The long-term outcome of irritant-induced asthma was examined in a follow-up study of 35 subjects reassessed nearly 14 years after their inhalational accident. The type of causal agent, the interval since the accident, and a visit to an emergency room or a hospitalization were not predictors of prognosis.
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