What to do when a cough turns chronic.
D001249:Asthma / Q000150:complications; D001991:Bronchitis / Q000150:complications; D002908:Chronic Disease; D003371:Cough / Q000209:etiology*; D005764:Gastroesophageal Reflux / Q000150:complications; D006801:Humans; D006967:Hypersensitivity / Q000150:complications