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.
In the skin symptoms include redness and nettlerash (hives, wheals). In the breathing tubes allergies cause wheezing, cough and shortage of breath (asthma), whereas in the gut symptoms such as abdominal discomfort (âtummy acheâ), nausea, vomiting and diarrhoea may occur. Severe allergies may result in throat swelling, severe asthma and a drop in blood pressure.