A 20-year-old college student with a history of asthma and allergic rhinitis, which were diagnosed in childhood, presents with cough and tightness of the chest that interfere with his sleep three or four times per month. He requires albuterol two or three times per week. He enjoys playing tennis but generally wheezes after a match. Last year, during the pollen season, he sought treatment in an emergency department for acute asthma but was not admitted to the hospital. His forced expiratory volume in 1 second (FEV1) is 93% of the predicted value. How should this case be evaluated and managed?