To help CPR practitioners to remember the order of the procedural steps, the acronym ABC was taught to stand for Airway, Breathing, Circulation. In 2010, the order of the steps was changed to Circulation, Airway, Breathing, so the acronym is now CAB.
The Itching is usually due to a disturbance in the skin of the external auditory canal. Ear canal skin is very sensitive. The slightest accumulation of debris, even a dead hair, may be felt as an itching sensation. Often, dryness in the ear is what causes inner ear itching.
Causes of ear blockage include: Accumulation of wax in the external ear canal: The external ear canal contains several glands which secrete wax or cerumen. The earwax traps dust particles, and later dries and falls off. Excessive wax may result in cerumen impaction and give a blocked feeling.