IGHE and asthma: A 2-groupX 4-time points (baseline, week 4, week 8, and week 12) mixed factorial analysis of variance (ANOVA) will be used to examine changes in asthma control test scores, number of days missed from school/work, FEV1 (% predicted), FEV1/FVC ratio, FVC (% predicted), blood eosinophil count, blood total IgE, and FeNO levels by group over time.