I have been diagnosed with mild bronchiectasis in my right upper lung. I am a 72 year old female in good health otherwise. I will have coughing spells two or three times a year that can last for several weeks or sometimes a month and usually end up taking an antibiotic. I do not have shortness of breath. I walk two plus miles a day 5 or 6 times a week. I was once prescribed Serevent Diskus and the last time Flovent. I have not been officially diagnosed with asthma. Which of these medicines do you think is the best one given the above information.