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Ear Infections in Pets: Complete Guide to Otitis in Dogs and Cats

Dr. Amanda Chen, DVM, DACVD
Updated June 2026
10 min read

Understanding Ear Infections (Otitis)

Ear infections are among the most common veterinary visits, especially in dogs. Otitis externa causes significant discomfort and requires prompt treatment.

Risk Factors

Breed Predispositions: Cocker Spaniels, Basset Hounds, Golden Retrievers, Poodles, Schnauzers

Common Causes:

  • Allergies (environmental, food) - most common
  • Ear mites (especially cats)
  • Foreign bodies
  • Excessive moisture from swimming/bathing
  • Hormonal disorders

Symptoms

  • Head shaking, scratching at ears
  • Redness, swelling, discharge
  • Musty or foul odor
  • Pain when touched
  • Head tilt (severe cases)

Diagnosis & Costs

  • Exam: $50-100
  • Ear cytology: $20-50
  • Culture: $50-150

Treatment

Cleaning: Professional ($100-300) + at-home maintenance

Medications:

  • Topical drops: $30-80
  • Oral antibiotics: $20-80
  • Anti-inflammatories: $10-40

Total per episode: $150-400

Prevention

  • Regular cleaning (weekly for prone breeds)
  • Keep ears dry
  • Manage underlying allergies
  • Weekly ear inspections

Related: skin-allergies, fleas-ticks

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