Anaphylactic reaction to chamomile tea

  • Andres Christian
    Department of Dermatology and Allergy, Technical University
  • Chen Wen Chieh
    Department of Dermatology and Allergy, Technical University Division of Environmental Dermatology and Allergology, Helmholtz Center for Environment and Health, Technical University
  • Ollert Markus
    Department of Dermatology and Allergy, Technical University
  • Mempel Martin
    Department of Dermatology and Allergy, Technical University
  • Darsow Ulf
    Department of Dermatology and Allergy, Technical University Division of Environmental Dermatology and Allergology, Helmholtz Center for Environment and Health, Technical University
  • Ring Johannes
    Department of Dermatology and Allergy, Technical University

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  • Anaphylactic Reaction to Camomile Tea

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Background: A type-IV-allergic reaction to German camomile (Matricaria chamomilla) in a form of allergic contact dermatitis is not unusual. However, only a few cases of anaphylactic reaction to camomile have been described in the literature.<br> Case Summary: We present the case of a 38-year-old Caucasian man who developed an episode of severe anaphylaxis with generalized urticaria, angioedema and severe dyspnoea one hour after consuming camomile tea. Laboratory examination demonstrated a total serum IgE of 123kU/l with specific IgE against camomile (4.94kU/l, class 3). Skin prick test and labial provocation test with camomile showed a strong positive reaction.<br> Discussion: Our case confirms the presence of a type-I allergy to orally ingested camomile and indicates that the incidence and risk may be underestimated. Additonal response to mugwort and pollen-derived food allergens should be evaluated in patients sensitised to camomile due to a higher incidence of allergic cross-reactivity.<br>

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