I have been suffering from dry cough for nearly a month now. On the 8th of December I had started 3 days Azithromycin antibiotic treatment with Ascoril D cough syrup and my cough subsided. Again it has resumed from the last couple of days and now again I have been suffering from severe cough from more than a week. I had Ascoril D (10 ml) twice daily which did not work and so switched to Alkof dx (7.5 ml). But nothing seems to work. Can I take another course of Azithromycin 3 tabs course although its been only 19 days since I had it last? please reply because due to this cough I am not even able to sleep at nights.