Otitis externa

Definition/Description

Inflammation of the ear canal with or without infection. This can be split into infective (usually bacterial or fungal) or non-infective dermatitis (allergic, eczematous).

Red Flag Symptoms

  • Severe unremitting pain, cranial nerve palsy, or fever may represent malignant otitis externa (osteomyelitis of the temporal bone caused by Pseudomonas aerogenosa). More common in diabetic or immunocompromised patients.
  • Spreading infection could be mastoiditis, periaural cellulitis, or perichondritis.

Guidelines on Management

  • Discuss avoidance of water in the ear and foreign bodies, ear plugs, or hearing aids whilst infected
  • Recommend an analgesic for symptomatic relief e.g. paracetamol or ibuprofen are usually sufficient. Codeine can provide additional analgesia for severe pain.
  • First line: OTC Acetic acid 2% spray (Ear-calm®)* 1 spray TDS for 7 days
  • Alternative: flumetasone 0.02% + clioquinol 1% ear drops (Locorten-Vioform®) 2-3 drops into the affected ear(s) BD
  • As per: North Yorkshire Antibiotic Guidance
  • In the presence of tympanic membrane perforation topical aminoglycoside use should be limited to 7 days to avoid ototoxicity.
  • Oral antibiotics are rarely indicated - consider seeking specialist advice if an oral antibiotic is thought to be required
  • If swelling of the external auditory canal or severe blockage by debris limit topical treatment then refer for micro-suction and consideration of using a wick to apply medication.
  • Review if symptoms have not settled in 7-10 days and consider referral to ENT.
  • If treatment fails or otitis externa is recurrent consider taking an ear swab.
  • Remember chronic use of ear drops can lead to allergy to topical treatment and/or fungal infection.

Referral Criteria/Information

Information to include in referral letter

  • Relevant past medical / surgical history
  • Current regular medication
  • Smoking status
     

Investigations prior to referral

Ear swab

Associated Policies

There are no associated policies.

Places covered by

  • Vale of York

Hospital Trusts

  • York and Scarborough Teaching Hospitals
Author: Responsible GP: Dr Daniel Kimberling / Responsible Consultant: Mr Frank Agada / Responsible Pharmacist: Mrs Laura Angus
Date created: 12/08/2025, 09:01
Last modified: 12/08/2025, 10:34
Date of review: 30/09/2024