I Had This Cough, Congestion White, Green And Some With

I had this cough, congestion white, green and some with blood for 2 months and everything I try won't work. I finally went to the dr. last week Tuesday and was given 5 day azithrom con 250mg and benzonatate 100mg and still no better. I took 2 bottles of Rotussin, 3 bottles nite time, Dayquil, Theraflu, 3 bags cough drop lemon honey, Tylenol sinus congestion, dollar general sinus congestion, lemon tea with honey, warm milk with margarine, mucinex, what can I do to get rid of this cough and congestion on in my throat.