16/01/2026
Clinical Points: Psoriasis & Otitis Externa
•Psoriasis of the external auditory canal is not an infection, but a chronic inflammatory skin disease.
•It commonly presents with persistent itching, dryness, and thick silvery scales, while pain is usually mild or absent.
•Psoriatic ear disease may mimic otitis externa, leading to misdiagnosis and unnecessary antibiotics.
•Disruption of the skin barrier in psoriasis predisposes to secondary bacterial or fungal otitis externa.
•Always ask about scalp psoriasis; ear canal involvement is frequently an extension of scalp disease.
•History of scalp scaling, dandruff-like lesions, or lesions at the hairline and postauricular area strongly supports the diagnosis.
•Treating the ear without addressing scalp psoriasis leads to frequent relapse, as both represent the same disease process.
•Recurrent or bilateral otitis externa with prominent itching should raise suspicion of underlying psoriasis or eczema.
•Otoscopy may show dry adherent scales rather than edematous, wet, or purulent canal skin.
•Excessive ear cleaning and frequent topical drops worsen psoriasis by increasing irritation and maceration.
•Pure psoriasis responds poorly to antibiotics but improves with topical corticosteroids and emollients.
•When secondary infection is suspected, use combined antibiotic–steroid ear drops, after gentle canal toilet.
•Long-standing canal psoriasis may cause canal stenosis and conductive hearing loss if untreated.
Clinical Pearl;
Management of psoriatic otitis externa is incomplete without treating associated scalp psoriasis; the ear and scalp should always be managed as one disease unit.