Otitis externa (OE) is an inflammation, that can be either infectious or non-infectious, of the external auditory canal. In some cases, inflammation can extend to the outer ear, such as the pinna or tragus. OE can be classified as acute, lasting less than 6 weeks, or chronic which lasts more than 3 months.
Conditions that can lead to swimmer's ear include:
Symptoms of otitis externa include:
Following tests are used to diagnose otitis externa
Routine laboratory testing and/or ear canal cultures are not necessary or indicated for uncomplicated cases. However, cultures are recommended for recurrent or resistant cases of otitis externa, particularly in immunocompromised patients.
Swelling, dry and scaly or serous discharge, and itching requiring frequent and prolonged treatment
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