External otitis

Low urgency
Very common-

It is defined as inflammation of the skin of the external auditory canal, also known as “swimmer’s ear”.

It is caused by infection, either from bacteria or from fungi.

It is usually manifested as inflammation of the canal, ear pain (otalgia), deafness, pus discharge, and fever.

Diagnosis will be made by taking a medical history and physical examination, including an examination of the ear with an otoscope.

The main treatment goals are managing pain (painkillers and anti-inflammatory drugs), treating the infection (topical antibiotics) and preventing recurrence (use drops of rubbing alcohol after swimming).

Bibliographic references
  1. Laura A Goguen. External otitis: Pathogenesis, clinical features, and diagnosis. UpToDate. Sep 19, 2014.
  2. Laura A Goguen. External otitis: Treatment. UpToDate. Sep 04, 2015.
  3. Centers for Disease Control and Prevention (CDC). Estimated burden of acute otitis externa--United States, 2003-2007. MMWR Morb Mortal Wkly Rep 2011; 60:605.
  4. Rosenfeld RM, Schwartz SR, Cannon CR, et al. Clinical practice guideline: acute otitis externa. Otolaryngol Head Neck Surg 2014; 150:S1.
  5. Llor C, McNulty CA, Butler CC. Ordering and interpreting ear swabs in otitis externa. BMJ 2014; 349:g5259.
  6. Rubin MA y cols. Infecciones de vías respiratorias superiores. Harrison. Manual de Medicina. 16º edición. 256-260.
Author
Dr. Elvira Moreno
Copyright
© TeckelMedical 2026

Symptoms

    Pain when the inner part of the ear is pressed


    Ear pain


    Pain worsens when the ear moves


    Discharge of fluid from the ear


    Reddened / swollen ear

Symptoms to watch out for

High fever (102.2 ºF or more)
Reddening of the ear

Self-care

Take over-the-counter pain relievers or anti-inflammatories.
Consult with your primary care physician regarding the prescription of antibiotics.
Avoid using cotton swabs.
Keep the ears dry.