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Management of otitis externa and the discharging mastoid cavity accounts for a significant proportion of the ENT out-patient workload. A simple technique of topical application of dermatological preparations is described which is easy and effective.
The distribution of ear drops in normal ears is variable. A new product Otomize® (Stafford-Miller) containing dexamethasone and neomycin has a non-aerosol spray mist delivery system. This has been applied to normal ears and found to be superior in its distribution to generally available ear drops previously assessed.
Ear drops are prescribed widely with little thought for the distribution inside the ear canal. This study compares the distribution of water and oil based drops. The results indicate that, under the test conditions, the penetration of ear drops is extremely variable. Water provided the greatest overall coverage, while the most viscous drops fared worst. It is suggested that in diseased ears even poorer penetration may result, which may explain the lack of response in some circumstances.
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