Suggest Treatment For Chronic Dry Cough With Asthma And Bronchitis

Hi, since 4 month been coughing, first was dry cough been given allergies medecin (lartadine, corticosteroids nasal), then x-ray show asthma and bronchitis, given adinosine, codeine antibiotic, feel good for 2 weeks keep coughing all my back muscle in pein, I use inhaler 4 time day, is it Normale or should I go back doc? Thanks