A 42-year-old man presented with a 1-month history of an intensely pruritic eruption on his right foot after spending a vacation in the rural part. The eruption was migratory, moving a few millimeters to a few centimeters daily. Closer examination of the foot revealed that the eruption was serpiginous, and erythematous in nature. What is the most likely diagnosis in this case?

How would you treat this patient? *This case is from Docplexus editorial team for educative purpose only. Source: NEJM