Indication

Otitis externa

Otitis externa is an acute or chronic inflammatory and infectious condition affecting the skin and subdermal tissues of the external auditory canal, with potential extension to the pinna, tragus, or tympanic membrane. Read more about Otitis externa

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About Otitis externa.

Otitis externa is an acute or chronic inflammatory and infectious condition affecting the skin and subdermal tissues of the external auditory canal, with potential extension to the pinna, tragus, or tympanic membrane.

It can affect individuals of all ages, though it occurs most frequently in children and adolescents, often provoked by moisture retention, local trauma, or underlying dermatologic disorders.

Pathophysiologically, disruption of the canal's protective cerumen barrier and alteration of its acidic pH facilitate microbial proliferation, primarily from bacterial pathogens such as *Pseudomonas aeruginosa* and *Staphylococcus aureus*.

The condition is clinically characterized by rapid-onset otalgia, pruritus, canal erythema, edema, purulent otorrhea, and marked tenderness upon manipulation of the tragus or pinna.

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