The Asthma Control Questionnaire has been chosen as a primary outcome since it is the most relevant clinical measure to assess asthma control over a short period of time. In patients whose asthma is stable between clinic visits, reliability of the ACQ is high (intraclass correlation coefficient (ICC)=0.90). Furthermore, the questionnaire is also very responsive to changes in asthma control(7). Therefore, this is the ideal tool to assess and compare the changes in asthma control over a short period of time. This instrument has the advantage of including both asthma symptoms as well as forced expiratory flow in one second (FEV1). A change of ACQ of 0.5 has been shown to be clinically significant. Therefore, we will be able to assess whether or not a treatment with ICS has the ability to significantly improve asthma control in non-eosinophilic asthmatic subjects. The questionnaire is provided in appendix III. Other functional and clinical outcomes such as quality of life, FEV1, provocative concentration of methacholine inducing a 20% fall in FEV1 (PC20), number of rescue medication and number of asthma exacerbations will also be assessed as secondary outcomes.