Which form of rescue medication is generally used for immediate relief of asthma symptoms?

Short-acting bronchodilators are specifically formulated for the immediate relief of asthma symptoms. These medications work quickly, typically within minutes, by relaxing the muscles surrounding the airways, thereby allowing for easier airflow and alleviating symptoms such as wheezing, chest tightness, and shortness of breath.

In contrast, long-acting bronchodilators are designed for maintenance therapy and take longer to exert their effects, making them unsuitable for quick relief. Antihistamines primarily address allergic reactions and may not be effective in treating asthma symptoms directly. Corticosteroids, while effective in managing inflammation over time, do not provide immediate relief for acute asthma attacks. Thus, short-acting bronchodilators are the preferred choice for urgent situations requiring prompt action.