A nonproductive cough, known as a dry cough, doesn’t produce phlegm or mucus. Many things — from allergies to acid reflux — can cause a dry cough. In some cases, there’s no obvious cause.
your chronic cough is probably the result of one of these three conditions: post-nasal drip, acid reflux or asthma. This trifecta is the issue behind 90 percent of all chronic coughs. To find out ...