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.
A chronic nighttime cough might signal asthma, nasal allergies, or a chronic sinus infection. A habit cough disappears with sleep. A cough that is at its worst when your child first awakens might signal bronchitis. The cystic fibrosis cough is also usually worse in the morning. It tends to be productive, and may come in spasms. A productive cough might also signal bronchitis or pneumonia.