Preventing and managing recurrent diffuse otitis externa

Recurrent diffuse otitis externa is typically caused by dermatitis, and can be prevented by treating the dermatitis. If recurrence of infection occurs despite appropriate otitis externa treatment, consider contact dermatitis, atopic dermatitis or seborrhoeic dermatitis – for a summary of management, including topical corticosteroid recommendations, see the Dermatology guidelines.

Keeping the external ear canal free of water may also prevent recurrent diffuse otitis externa. To prevent water entry, the external ear canal should be occluded with earplugs, or a shower or bathing cap. To dry the ear canal after water exposure, use an alcohol-containing eardrop; however, this may exacerbate dermatitis. Use:

If recurrent infection occurs, manage as acute diffuse otitis externa.