Which type of medication is primarily used for rapid relief during an acute asthma attack?

Short-acting beta2 agonists are the primary medication used for rapid relief during an acute asthma attack because they work quickly to relax bronchial smooth muscle, leading to immediate bronchodilation. These medications typically provide relief within minutes and have a duration of action that lasts for several hours.

In contrast, leukotriene modifiers are used for chronic asthma control but take time to exert their effects, making them unsuitable for immediate relief during an acute episode. Corticosteroids, while effective for reducing inflammation and preventing future exacerbations, do not provide rapid relief and are typically used for long-term management rather than immediate response during an attack. Mast cell stabilizers also do not offer quick relief and are more preventive in nature, being utilized for long-term control of symptoms rather than acute interventions. Thus, short-acting beta2 agonists are the recognized choice for urgent situations requiring fast action.