Hello doctor, I am suffering from Allergic Bronchitis. since last 1 month , was constantly suffering from breathlessness after cold and cough infection. At that time I had taken antibiotic - Azithral 500 fro 3 days. Got relief , but constantly cough wheezing was in chest , and felt breathlessness. I had taken Deriphylin Retard 300 BD for many days. But again it restarted.