Effective Treatment of Experimental Acute Otitis Media by Application of Volatile Fluids into the Ear Canal
Departments of 1Clinical Microbiology and 2ENT, Landspitali University Hospital, Reykjavik, Iceland; 3Department of Ear, Nose, and Throat, Lund University Hospital, Lund, Sweden
Essential oils are volatile and can have good antimicrobial activity. We compared the effects of oil of basil (Ocimum basilicum) and essential oil components (thymol, carvacrol, and salicylaldehyde) to those of a placebo when placed in the ear canal of rats with experimental acute otitis media caused by pneumococci or Haemophilus influenzae. Progress was monitored by otomicroscopic examination and middle ear cultures. The treatment with oil of basil or essential oil components cured or healed 56%–81% of rats infected with H. influenzae and 6%–75% of rats infected with pneumococci, compared with 5.6%–6% of rats in the placebo group. Essential oils or their components placed in the ear canal can provide effective treatment of acute otitis media.
Received 11 August 2004; accepted 12 January 2005; electronically published 29 April 2005.
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Online publication date: 1-May-2010.
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Online publication date: 1-Jun-2009.
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Financial support: Auris Ehf.
Potential conflict of interest: K.G.K. is a shareholder in Auris Ehf, which funded the study.



