sir my son is 11 year. he is having aso titer positive(800). he had undergone surgery for tonsilitis and before 12 months he had ear tube inserted in both years .. now the problem is frequently he is getting cough and azythromycin doses are giving he become alright again after a week same thing iam very much up set for him. please help me. sir my email id is YYYY@YYYY if you can help me please answer my question.