Gastroesophageal reflux disease, or GERD, sometimes causes a chronic dry cough that is particularly bothersome at night, according to WebMD. Doctors often attribute unexplained coughing to the condition, although the medical community is not clear about the mechanism that causes cough to occur with GERD.
Although heartburn, an acidic taste in the mouth and regurgitation are the most common GERD symptoms, when acid reflux passes the upper esophageal sphincter and enters the voice box or throat, sore throat and hoarseness often result, reports WebMD. GERD can worsen symptoms of asthma, and medications used to treat asthma can exacerbate GERD symptoms. Other GERD symptoms include feeling as if there is a lump in the throat, increased salivation, earache and bad breath.