What is the recommended action for patients with exercise-induced asthma if symptoms occur?

Using an inhaler 15-20 minutes before exercise is the recommended action for patients with exercise-induced asthma if symptoms occur. This approach helps to prevent asthma symptoms by providing bronchodilation and reducing airway inflammation before the onset of exercise.

By using a short-acting beta-agonist (SABA) inhaler prior to physical activity, patients can effectively open their airways, making it easier to breathe during exercise and minimizing the risk of asthma symptoms such as wheezing, coughing, or shortness of breath. It is a proactive measure that allows individuals with exercise-induced asthma to engage in physical activities more safely and comfortably.

In contrast, simply stopping exercise immediately may not address the underlying bronchoconstriction that can occur. Increasing the intensity of the exercise is counterproductive, as it could exacerbate the symptoms. Taking antihistamines, while useful for related allergic conditions, does not directly address the immediate bronchospasm associated with exercise-induced asthma and may not be effective in preventing symptoms during strenuous activities. Thus, using the inhaler prior to exercise is the most effective and recommended action.