Which of the following is a non-pharmacological intervention for managing asthma?

Breathing exercises are considered a non-pharmacological intervention for managing asthma because they focus on teaching individuals techniques to improve their breathing efficiency and reduce anxiety associated with asthma attacks. These exercises, such as diaphragmatic breathing or pursed-lip breathing, help patients enhance their lung function and manage breathlessness more effectively. Furthermore, they can promote relaxation and aid in reducing stress, which can be a trigger for asthma symptoms.

In contrast, the other options listed involve pharmacological treatments that address asthma symptoms through medication. Inhaled corticosteroids and long-acting beta agonists are commonly prescribed to reduce inflammation and dilate airways, while antihistamines are used to manage allergic reactions that can exacerbate asthma symptoms. These interventions, while important, differ fundamentally from the non-drug approaches like breathing exercises that empower patients to take an active role in managing their condition.