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Contact urticaria — DOccMed MCQ

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ModerateOccupational DiseaseContact urticariaDOccMed

A 25-year-old bakery worker develops facial swelling and urticaria within 30 minutes of starting work. She has mild atopic eczema. Rash resolves within 2 hours of leaving. What is the most likely diagnosis?

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Correct answer: E — Contact urticaria due to flour proteins

Rapid onset urticaria with facial swelling resolving on leaving work is contact urticaria (IgE-mediated). This can progress to occupational asthma.

Reference: HSE Flour Dust; Dermatology Guidelines