Earwax, or cerumen, is a naturally created substance used to protect your ear from foreign particles entering and causing an infection. Earwax goes through a usually unnoticed process; it is created, dries up and falls out. An oddly shaped ear canal as well as use of a cotton swab to clean the ear can lead to a buildup of earwax. A decrease in hearing, dizziness, ear pain and a plugged or fullness sensation in the ear are all signs you may have a buildup of earwax. When dealing with ear wax removal, to remove the cerumen your doctor will use a special suction and sometimes use a tool called a curette. The best way to prevent a blockage of earwax in the future is to avoid placing any foreign items in the ear, especially cotton swabs.