Had A Bad Case Of Bronchitis Last October And Develop

Had a bad case of bronchitis last October and develop bad cough that I am still suffering with. Occasionally I cough up very thick mucus. Throat and /or bronchale tubes irritation. Have had two rounds of antibiotics, a steroid shot, steroid coughing medication, steroid nasal spray and steroid inhaler. What is going on with me, how do I get rid of cough and/or should I see a pulmonary doctor?