skip to main content

Occupational urticaria from persulphates — DOccMed MCQ

Instant feedback + full explanation. One question, done properly.

HardOccupational Skin DiseaseOccupational urticaria from persulphatesDOccMed

A 24-year-old hairdresser gets facial flushing, wheeze and itchy wheals on her wrists during bleaching appointments. Symptoms occur within minutes of mixing powder lightener and settle away from the salon. What is the most likely occupational diagnosis?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: C — Occupational contact urticaria and asthma risk from persulphates

Persulphate salts in hair bleaching products can cause immediate urticaria and respiratory symptoms. The rapid onset during powder mixing is a key feature. Irritant dermatitis from shampooing would be slower and eczematous. The respiratory symptoms mean exposure controls and specialist assessment are needed.

Reference: HSE Hairdressing dermatitis guidance; COSHH Regulations