Review Question - QID 212337

A 27-year-old woman comes to the clinic for blisters on both hands. The patient has a past medical history of asthma, eczema, and a car accident 2 years ago where she sustained a concussion. She also reports frequent transient episodes of blurred vision that clear with artificial tears. When asked about her blisters, the patient claims she was baking yesterday and forgot to take the pan out with oven gloves. Physical examination demonstrates weeping blisters bilaterally concentrated along the palmar surfaces of both hands and decreased pinprick sensation along the arms bilaterally. What is the most likely explanation of this patient’s symptoms?