My age is 22 years and I have sinus problem since 2 years and controlling sinus allergy using metasapray and ebast m tablet but currently I have coughing since last 3 weeks and I consulted with a reputed Dr. And he told me to take asthakind dx syrup for 5 days and after taking it I felt little better and now Dr. Has prescribed benz pearls capsules for more 5 days and with that earlier I took relent od capsule for 10 days and currently taking histakind m tablet, metaspray nasal spray, benzpearls cap thrice in a day, and esoga rd cap, but coughing problem is still there and when I cough then feeling some throat irritation like I feel breathing problem so I need to control my coughing and also sometimes feel that my throat has been swollen like while swallowing feel difficult sometimes specially early in the morning and I would like to inform you that 4 years back I had tuberculosis but that was treated and its course was completed, so please tell me why I am getting coughing since last more than 20 days and why my throat provides difficulties why I cough.