- Children aged 2 to 20 years, from all race and ethnicity groups, with a known history of asthma who present to the Emergency Department of Women and Children's Hospital of Buffalo with an acute exacerbation of mild or moderate asthma are potentially eligible for the study. Patients with severe asthma exacerbations will require intravenous steroid therapy, therefore, they will not be enrolled in the study. The investigators plan to enroll patients from winter of 2014 to fall 2016.