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.
One of the most common forms of allergy is allergic rhinitis (hay fever), which produces symptoms like. nasal congestion, itchy and watery eyes, sneezing, stuffy or runny nose, scratchy or sore throat, throat clearing, cough from postnasal drip. The symptoms of hay fever can, in turn, lead to fatigue and lethargy.