Raghavendra Rao, Balachandran C.
Parthenium dermatitis presenting as sub-acute prurigo.
J Pak Assoc Derma Nov ;19(1):60-1.

This article describes two case reports of patients with Subacute prurigo. A 45-year-old rice mill owner presented with itchy skin lesions over the upper extremities of 6 month duration. There was no history of photosensitivity or atopy. Cutaneous examination revealed multiple erythematous and hyperpigmented excoriated papules on the arms and forearms. Patch test was done with Indian standard series (ISS) and parthenium 1 and 3% revealed strong reaction (++) to parthenium at 48 and 72 hours.

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