Causes of CHRONIC COUGH T-Tuberculosis/Tracheitis H-Hypersensitivity (Allergic) O-Obstructive Lung Diseases R-Rx (drugs) ACE INHIBITORS A-Asthma C-Ca Bronchus/Ca Larynx S-Sinusitis/Post-nasal drip C-CHF O-Outer ear canal ear drum infection U-Upper Airway Obstruction G-GI airway Fistula/GERD H-Hypersensitivity