Life SciencesDermatologyImmunologyAllergyAutoimmunityHypersensitivityAllergic Skin DiseasesAutoimmune Skin DiseasesContact AllergyContact DermatitisPruritic Skin DiseaseSkin IrritationAutoimmune Blistering DermatosesBullous DermatosesContact Dermatitis PathologyPemphigoid DiseasesPruritic Eruptions
A young Malay female presented with a bullous eruption as a manifestation of contact allergy to cinnamic aldehyde in cinnamon. The clinical and histological features resembled bullous pemphigoid but immunological markers for pemphigoid were absent. The patient responded to a short course of oral steroids. Contact allergy can mimic pemphigoid.