help please

hi.iam a 40 year old male whose had a productive coughCough
Pertussis (mornings ) for 2 years now. iam an x-smoker 25 years/20 a day. my lungArds (acute respiratory distress syndrome)
Bronchoscopy with transbronchial biopsy
Chronic obstructive pulmonary disease
Coal worker's lungs - chest x-ray
Coal worker's pneumoconiosis
Collapsed lung, pneumothorax
Diaphragm and lungs
Heart-and-lung transplant
Incision for lung biopsy
Lung anatomy
Lung biopsy function showed siginificant reduction but are now normal. i take seritide and nazonex daily. my dr doesn't think i have copdChronic obstructive pulmonary disease
Copd (chronic obstructive pulmonary disorder)
Smoking and copd (chronic obstructive pulmonary disorder). i have taken refluxGastroesophageal reflux disease
Gastroesophageal reflux in infants
Hiatal hernia repair
Reflux nephropathy
Vesicoureteral reflux medicationAllergic reactions to medication
Drug allergies
Drug-induced hypertension
Getting a prescription filled
Home pharmacy
Inhaler medication administration too just in case.  my ctAbdominal ct scan
Ascites with ovarian cancer, ct scan
Bronchial cancer - ct scan
Cholecystitis, ct scan
Cranial ct scan
Ct scan
Ct scan of the brain
Hemangioma - ct scan
Hepatocellular cancer, ct scan
Intracerebellar hemorrhage - ct scan
Kidney and liver cysts - ct scan is normal and sputum culture is normal too. i have to clear my throatCancer - throat or larynx
Throat swab culture alot and feel congested right at the base of my throatCancer - throat or larynx
Throat swab culture. please could anyone give share their thoughts with me about what my problem may be. thank you

[National Jewish Health]

Your problem could be residual chronic bronchitis, after 25 pack-years of smoking cigarettes.  But, your doctor is probably right in suggesting that you don't have airway obstruction.  It could also be that the mucus is originating, not in your lungs, but in your nose and sinuses; resulting in drainage down the back of your throat called postnasal drip.  You could still be having gastroesophageal reflux that can cause a productive cough, if the reflux medication is not controlling the reflux.