Larva currens is also a cause of migratory pruritic eruptions but is marked by 1 ) migratory speed on the order of inches per hour 2 ) perianal involvement due to autoinfection from stool and 3 ) a wide band of urticaria.
22.
These are localized, tense, inflammatory pruritic subcutaneous edema seen in joints of extremities, lasting for 1 3 days . They represent areas of angioedema resulting from a host response to allergens released by the maturating worm and its metabolic products.