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Caterpillar dermatitis

K Dunlop1, S Freeman

  • 1Skin and Cancer Foundation, Sydney, New South Wales, Australia.

The Australasian Journal of Dermatology
|February 12, 1998
PubMed
Summary
This summary is machine-generated.

Contact with Euproctis edwardsi caterpillars, or

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Area of Science:

  • Dermatology
  • Toxicology
  • Entomology

Background:

  • Euproctis edwardsi, the mistletoe browntail moth, is a hairy caterpillar common in southeastern Australia.
  • Children often refer to these caterpillars as 'woolly bears'.
  • Their barbed hairs readily fragment and are difficult to remove from skin, causing irritation.

Observation:

  • A 3-year-old girl experienced recurrent urticarial eruptions.
  • The eruptions were suspected to be caused by contact with Euproctis edwardsi in her garden.

Findings:

  • Contact with Euproctis edwardsi caterpillars or their hairs causes itchy urticarial wheals and papular eruptions.
  • Microscopy can identify caterpillar hairlets in skin scrapings.
  • Treatment involves symptomatic relief with calamine lotion, sodium bicarbonate solution, and antihistamines.

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Implications:

  • Minimizing Euproctis edwardsi infestations can be achieved by removing mistletoe from eucalyptus trees.
  • Affected areas can be treated with white oil or carbaryl 0.1% spray.
  • Prompt identification and removal of hairlets, alongside symptomatic treatment, can manage skin lesions effectively.