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Related Experiment Videos

[Polyvalent contact allergy in a florist].

B M Hausen, K H Schulz

    Dermatosen in Beruf Und Umwelt. Occupation and Environment
    |January 1, 1978
    PubMed
    Summary

    A florist developed severe allergies to chrysanthemums and primrose, leading her to quit her job. Even 12 years later, she experienced allergic reactions from ingesting certain plants and garden work.

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    Area of Science:

    • Dermatology
    • Allergology
    • Botany

    Background:

    • Occupational contact allergy to specific plants can persist long-term.
    • Plant allergies can manifest through various routes, including ingestion and direct contact.
    • Cross-reactivity between different plant species is a significant factor in allergic reactions.

    Observation:

    • A female florist experienced persistent allergic reactions to chrysanthemums and primrose for over a decade.
    • She reported gastrointestinal and pharyngeal symptoms after consuming yarrow and chamomile tea.
    • Facial swelling and pruritus occurred after weeding, indicating contact dermatitis.

    Findings:

    • Epicutaneous testing confirmed allergy to chrysanthemum and cross-reactivity to sunflower, arnica, chamomile, yarrow, tansy, and mugwort.
    • Patch testing with primin demonstrated ongoing high-grade hypersensitivity to Primula (primrose).
    • The study highlights delayed-type hypersensitivity reactions to common plants.

    Implications:

    • Individuals with known plant allergies should exercise caution with related species.
    • Occupational exposure to plants necessitates awareness of potential long-term allergic risks.
    • Understanding plant cross-reactivity is crucial for accurate diagnosis and management of allergic contact dermatitis.

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