To begin an etching, an artist must first coat a blank copper plate with wax. Using a steel needle, she draws her intended picture through the wax and onto the metal. The metal is then submerged into a bath of acid and left for about two hours.
The majority of people with a GERD-induced cough donât have classic symptoms of the disease such as heartburn. Chronic cough can be caused by acid reflux or the reflux of nonacidic stomach contents. Some clues as to whether a chronic cough is caused by GERD include: coughing mostly at night or after a meal.
However, at night when you are lying flat gravity is no longer helping prevent reflux, and if the valve isn't functioning properly, stomach acid can pass into the esophagus and all the way up to the larynx where it irritates the back of the throat and can cause hoarseness.