Study measures will include the following:
* asthma demographic and symptoms questionnaire
* Validation of proper inhaler technique
* Height, weight measurements
* Forced spirometry and reversibility testing
* DLCO
* Fractional excretion of NO in exhaled breath
* Chest and sinus CT
* Induced sputum analysis
* Complete blood count, electrolytes, immunoglobulin E, Aspergillus Specific IgE
* Skin allergy testing
