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Otitis externa, also called swimmer's ear, [1] is inflammation of the ear canal. [2] It often presents with ear pain, swelling of the ear canal, and occasionally decreased hearing. [2] Typically there is pain with movement of the outer ear. [3] A high fever is typically not present except in severe cases. [3]
Risk factors include exposure to excessive moisture (e.g. from swimming or a warm climate) and disruption of the protective cerumen barrier, which can result from aggressive ear cleaning or placing objects in the ear. [19] Malignant otitis externa is a rare and potentially life-threatening complication of otitis externa in which the infection ...
Cerumenolytics should not be used in ears that in which the ear drum has been perforated or is otherwise nonintact. [1] Cerumenolytics should also be avoided in ears that are actively infected due to the lack of research in this area (i.e. people with otitis externa, a type of ear infection). [1]
Otitis externa can generally be prevented by keeping the ear canal dry and/or applying ear drops labeled for swimmer's ear (typically a dilution of isopropyl and glycerin) after exposure to water to assist with keeping the ear canal dry. [16] Treatment of otitis externa is centered around antibiotic ear drops and pain control (e.g ...
Earwax helps protect the ear by trapping dust and other foreign particles that could filter through and damage the eardrum. [5] Normally, earwax moves toward the opening of the ear and falls out or is washed away, but sometimes excessive earwax can gather and become hard to remove. This is referred to as excessive earwax or impacted cerumen. [21]
The most common aetiology of acute otitis externa is bacterial infection, [5] while chronic cases are often associated with underlying skin diseases such as eczema or psoriasis. [6] A third form, malignant otitis externa, or necrotising otitis externa, is a potentially life-threatening, invasive infection of the external auditory canal and ...
Ear instillation is the process of introducing otic medication or other liquids into the ear canal. Proper care is needed in delivering such liquids. Proper care is needed in delivering such liquids. Indications for ear instillation
Cerumen (earwax) or foreign body in the external auditory canal; Otitis externa, infection or irritation of the outer ear; Exostoses, abnormal growth of bone within the ear canal; Tumor of the ear canal; Congenital stenosis or atresia of the external auditory canal (narrow or blocked ear canal).
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