Nasal Application

The mucous membranes of the nasal passages are known to absorb readily whatever is placed inside, such as the nasal sprays used to administer doses of drugs for various conditions.
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Care must be taken when using this method of application. As reported by Penny Price, serious though non-fatal toxicity in children has been reported when applying or injecting Peppermint and/or Eucalyptus globulus inside the nose.
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Due to the seriousness of these cases many professional aromatherapists recommend that Essential Oils should not be instilled into the noses of children under age six.