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Geranium

Author: Dr Marius Rademaker, Dermatologist, Hamilton, New Zealand,1999.

Common name: Geranium.
Botanical name: Pelargonium graveolens
Family: Geraniaceae.
Origin: Originally from South Africa and Australia but now grown worldwide.
Description: Geranium is a genus of hardy herbaceous plants although it now includes species of Pelargonium. These include sub-shrubs.
Uses: Source of geranium oil which is used in perfumery and aroma therapy. Found in some leg ulcer medications.
Allergens: Probably geraniol.
Allergy: Allergic contact dermatitis has been reported most commonly to geranium oil but also in growers/gardeners (dead heading). Has been reported to cause contact dermatitis from a leg ulcer dressing.
Cross reactions: Lemon grass (citronella).
Other information:  
Patch test: Leaf as is, geraniol 10%.

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