Of the 252 patients, 2 were found not to have asthma, by a physician in charge, after they had provided their consent. They were excluded from the analysis. Two patients with asthma, who agreed to participate in this observational study, did not take any medicine for asthma, because their asthmatic symptoms were stable without treatment. These patients were also excluded from the analysis. Therefore, the data obtained from 248 patients who took controller medications for asthma were analyzed in this prospective, observational study. These 248 patients (97 males, 151 females; age range: 16–88 years; mean ± standard deviation (SD): 58.6±16.3 years) received sufficient treatment for asthma. Treatments for rhinorrhea, sneezing, nasal obstruction, olfactory dysfunction, or upper abdominal symptoms were prescribed at the physician’s discretion. Of the 248 patients, 246 had used inhaled corticosteroids (ICS): 92 used low-dose ICS, 106 used medium-dose ICS, and 48 used high-dose ICS. In addition, 50 patients were treated according to Treatment Step 2 of the Global Initiative for Asthma (GINA) guidelines, 47 patients were treated according to Treatment Step 3, 120 were treated according to Treatment Step 4, and 31 were treated according to Treatment Step 5. Long-acting beta-agonists (LABA) were used by 170 patients, leukotriene receptor antagonists were used by 86 patients, sustained release theophylline was used by 44 patients, and oral corticosteroids were used by 31 patients for asthma control. Proton pump inhibitors (PPIs) were used by 61 patients, and 6 patients took histamine H2 blockers. Forty-eight patients took histamine H1 blockers, and 31 patients used nasal corticosteroids.