Read the Excerpt from This Note

Read the excerpt from this note. "I had the pleasure of seeing your patient, Mr. Skein, a 39-year-old male with a chronic history of atopic dermatitis. His atopic dermatitis was well controlled with topical corticosteroids until 3 weeks ago, when he developed a new rash consisting of vesicles overlying the areas of xerosis on his extremities. He was initially diagnosed with impetigo and treated with topical antibiotic therapy. He returned in 1 week without any improvement and was put on oral antibiotics at that time". Mr. Skein was initially diagnosed with impetigo, which is

A) a highly contagious bacterial infection of the skin.
B) a small blister.
C) an unusual inflammation of the skin.
D) diminished melanin in the skin.
E) dry skin.