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General Medicine

Otitis Externa

Douglas S. Parks, MD Reviewed 06/2020
 


BASICS

DESCRIPTION

Inflammation of the external auditory canal: 

  • Acute diffuse otitis externa: the most common form; an infectious process; usually bacterial; occasionally fungal (10%)

  • Acute circumscribe...

DIAGNOSIS

HISTORY

Variable length history of itching, plugging of ear, ear pain, and discharge from ear 

PHYSICAL EXAM

  • Ear canal: red, containing purulent discharge and debris

  • Pain on manipulation of the ...

TREATMENT

Outpatient treatment, except for resistant cases and necrotizing otitis externa 

GENERAL MEASURES

  • Cleaning the external canal may facilitate recovery.

  • Analgesics as appropriate for pain

  • Antiprur...

ONGOING CARE

FOLLOW-UP RECOMMENDATIONS

No restrictions 

Patient Monitoring

  • Acute otitis externa

    • 48 hours after therapy instituted to assess improvement

    • At the end of treatment

  • Chronic otitis externa

    • Every 2 ...

REFERENCES

1
Kaushik V, Malik T, Saeed SR. Interventions for acute otitis externa. Cochrane Database Syst Rev.  2010;(1):CD004740.
2
Heward E, Cullen M, Hobson J. Microbiology and antimicrobial susc...

ADDITIONAL READING

Wipperman J. Otitis externa. Prim Care.  2014;41(1):1–9. 

SEE ALSO

Algorithm: Ear Pain/Otalgia 

CODES

ICD10

  • H60.523 Acute chemical otitis externa, bilateral

  • H60.593 Other noninfective acute otitis externa, bilateral

  • B37.84 Candidal otitis externa

  • H60.6 Unspecified chronic otitis externa

  • H60.329 Hemor...

CLINICAL PEARLS

  • Acute diffuse otitis externa is the most common form: bacterial (90%), occasionally fungal (10%).

  • Acute circumscribed otitis externa is associated with infection of a hair follicle.

  • Chro...

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Related Images
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Otitis externa.Neil O. Hardy, Westpoint, CT.
Otitis externa.Neil O. Hardy, Westpoint, CT.
Otitis externaFrom Stedman's Medical Dictionary, 27th ed. Baltimore: Lippincott Williams & Wilkins 2000.
Otitis externaFrom Stedman's Medical Dictionary, 27th ed. Baltimore: Lippincott Williams & Wilkins 2000.
Acute otitis externaFrom Bickley, LS and Szilagyi, P. Bates' Guide to Physical Examination and History Taking, 8th Ed. Philadelphia: Lippincott Williams & Wilkins 2003
Acute otitis externaFrom Bickley, LS and Szilagyi, P. Bates' Guide to Physical Examination and History Taking, 8th Ed. Philadelphia: Lippin...
FIGURE 121.3. Gauze wick (¼ × 1½ in.) being placed in ear canal to facilitate topical treatment of otitis externa.
FIGURE 121.3. Gauze wick (¼ × 1½ in.) being placed in ear canal to facilitate topical treatment of otitis externa.
Figure 16-2 Otitis externa.
Figure 16-2 Otitis externa.
Figure 16-4 Mycotic otitis externa.
Figure 16-4 Mycotic otitis externa.
otitis externa
otitis externa
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