What medical term describes the secondary spread of pederin lesions to previously unaffected skin areas?
Answer
Autoinoculation
Autoinoculation is a significant concern when dealing with Paederus dermatitis because it explains why the rash may appear to spread or pop up in new, seemingly unrelated locations days after the initial event. This occurs when a person unknowingly transfers the pederin toxin from the originally contaminated skin area to a new site. Since sensitive areas like the eyelids, neck, or groin are easily touched by contaminated hands, the toxin can be effectively transferred, initiating secondary lesions far from the original contact point. For instance, rubbing one's eyes after handling a phone that rested near the initial rash site is a common route for autoinoculation, leading to secondary blistering in those delicate areas.
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