A 7-Year-Old Boy Is Brought to the Office for Evaluation

A 7-year-old boy is brought to the office for evaluation of anal pruritus.  A month ago, the patient went on a weekend camping trip with a group of friends.  During the weekend, they learned to swim in the lake and stayed together in a log cabin.  After returning home, the patient began to have increasing anal pruritus that is most severe at night.  He has continued to have a healthy appetite and has had no vomiting or diarrhea.  The patient has no chronic medical conditions, takes no daily medications, and has no known allergies.  Vital signs are normal.  Physical examination shows a well-appearing patient in no apparent distress.  Skin examination is normal.  The lungs are clear to auscultation, and the abdomen is soft and nondistended.  Inspection of the anus shows mild perianal erythema with multiple excoriations, but no induration, fluctuance, or fissures.  Which of the following is the most appropriate treatment for this patient?

A) Clotrimazole
B) Ivermectin
C) Metronidazole
D) Permethrin
E) Praziquantel
F) Pyrantel pamoate

Correct Answer:

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