Final answer:
The treatment for asthma exacerbations after a respiratory tract infection involves short-term bronchodilator medications for acute symptoms and long-term control medications to prevent future asthma attacks.
Step-by-step explanation:
The treatment for asthma exacerbations after a respiratory tract infection in patients with previously well-controlled asthma involves a combination of short-term and long-term medications. Short-term, fast-acting bronchodilator medications are typically used to treat the acute symptoms during an asthma attack. These medications are usually administered via an inhaler or nebulizer. Long-term control medications, such as corticosteroids, are also prescribed to prevent future asthma attacks and manage the underlying inflammation in the airways.