*Atopy defined as > 1 positive skin prick test, or>1 positive specific IgE to aero-allergen (>3mm wheal diameter), ICS: inhaled corticosteroids, BDP: beclomethasone diproprionate, TRACK: test for respiratory and asthma control in kids, PACQLQ: parental asthma child quality of life questionnaire, FeNO: exhaled nitric oxide