The âshellâ or âcaseâ is the outer covering of a hearing aid, and determines its style. Of the many parts of a hearing aid, style can make a big difference to your overall satisfaction. Beltone's two main style categories are Behind-the-Ear (BTE) and Custom hearing aids. IIC. Invisible-in-Canal.
The symptoms of chest congestion can be listed as under. 1  Coughing. 2  Shortness of breath. 3  Labored breathing.  Chest 1  pain. Dizziness.  Runny 1  nose. Wheezing. 2  Discomfort. Blood in  cough. Loud noises while breathing.
Signs and symptoms of upper respiratory allergies resemble those of a cold or flu. Chronic sneezing, nasal congestion, ear infections, scratchy throat, postnasal drip, mucus secretions, watery eyes, a runny nose and headaches are indications that an upper respiratory allergy is afflicting an individual.