Otitis Externa Management Guideline

Diagnosis and Treatment

The American Academy of Otolaryngology-Head and Neck Surgery recommends performing aural toilet before administering drops to ensure medication reaches infected tissues, with a treatment duration of 7-10 days, achieving clinical cure rates of 65-90% 1
Topical antibiotic ear drops are the definitive first-line treatment for uncomplicated acute otitis externa, with options including ofloxacin 0.3%, ciprofloxacin 0.2%, or neomycin/polymyxin B combinations for intact tympanic membranes 1
The American College of Radiology supports the diagnosis of otitis externa based on classic findings, including ear canal swelling and redness, and intact tympanic membranes 2, 3

Patients should be instructed on proper drop administration technique, including warming the bottle, lying with the affected ear upward, and maintaining the position for 3-5 minutes, with activity restrictions to keep the ear dry during treatment 1
The American Academy of Otolaryngology-Head and Neck Surgery recommends documenting pain severity assessment and analgesic prescription, with patients informed that pain typically improves within 48-72 hours of starting treatment 1, 4

Patients over 58 years old should be assessed for diabetes or immunocompromised status, as these are risk factors for progression to necrotizing otitis externa, with aural toilet performed with atraumatic suctioning instead of aggressive irrigation 1, 3, 4
If the patient fails to respond to antibacterial drops within 48-72 hours, consider fungal co-infection requiring antifungal therapy and debridement, with a follow-up plan directing the patient to return if symptoms don't improve 1, 5