What is the function of asthma prevention medications?

Asthma prevention medications play a crucial role in managing chronic asthma and work primarily to keep the condition under control and prevent attacks. These medications, often referred to as controller medications, are designed to be taken regularly and may include inhaled corticosteroids and long-acting beta-agonists. Their primary function is to reduce the frequency and severity of asthma exacerbations by addressing the underlying inflammation and hyperreactivity in the airways.

While immediate relief during an attack is important, that function is typically served by rescue medications, not by preventive strategies. Increasing lung capacity during exercise is a relevant consideration for individuals with asthma, but it is not the primary function of preventive medications. Thus, the correct answer emphasizes the role of asthma prevention medications in maintaining overall control of the condition and minimizing the likelihood of acute asthma attacks.