Following is a type of physical uicaria –
Correct Answer: Dermographism
Description: Dermographism:-Type of physical uicaria- induced by mechanical stimulus also called as Skin writing Rapid appearence of wheal flare at the site of brisk firm stroke made with a firm object.Lesions are often linear/ assume the shape of eliciting stimulus.Local erythema followed by edema.Most common physical uicaria seen in young adults sometimes symptomatic pruritus is present before the onset of lesions IADVL textbook of dermatology, cutaneous vascular responses, page 661
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