Contact urticaria in Child
In both of these forms, contact with the inciting agent triggers an inflammatory reaction in which capillary permeability changes. Fluid leaks into the area of contact, causing a wheal and flare reaction. These wheals (hives) are raised areas of the skin that are pink or red in color and often intensely pruritic. Individual wheals, once formed, are self-limiting and will subside when exposure to the causative substance has ceased. Prevention of this condition by avoiding known causative agents is the best treatment.
Contact urticaria can be differentiated from cellulitis based on time course and exposure history. Contact urticaria develops and resolves quite quickly, whereas cellulitis, by comparison, is a more indolent and progressive process.
L50.6 – Contact urticaria
19364004 – Contact urticaria
Differential Diagnosis & Pitfalls
Drug Reaction Data