A persistent cough can be debilitating, socially distressing, and adversely impair quality of life(Qol). One of the more common presentations to a medical practitioner is a dry cough. The common causes of chronic dry coughing include post-nasal drip, gastroesophageal reflux disease, asthma, post viral cough and certain drugs such as beta blockers, ACE inhibitors and aspirin. If a cough lasts for more than three weeks, multiple causes are likely and symptoms will abate only when all the causes are treated will the patient be symptom-free.  Individuals who smoke often have a smoker's cough, a loud, hacking cough which often results in the expiration of phlegm.
Coughing may also be used for psychological or social reasons, such as the coughing before giving a speech.  This is known as psychogenic, habit or tic coughing, and may increase in frequency in social situations featuring conflict.
Cough causes
Cough risk factors
Anaphylaxis causes
Rhinitis causes
Conjunctivitis causes
Pneumonia causes
Trench mouth causes
Croup causes