Usually the entire canal is involved, but a external auditory canal furuncle can be considered a localized form of otitis externa. Bacteria ingress through tiny epithelial tears, proliferate, and result in swelling of the canal lining. The patient typically complains of intense otalgia and may also have otorrhea, fullness, or hearing loss. Clinical Appearance 1. The canal lumen is narrowed, and can be swollen shut.
Skin is erythematous.
Exudate may be present. Recently, ciprofloxacin and ofloxacin topicals have become available also. The ear wick is typically a dried sponge which is inserted into the canal under direct vision. It helps wick ear drops along the canal, holds the solution in contact with the skin of the canal, and also applies pressure to the canal skin. Wicks are removed at 2 days, and can be replaced then if necessary.