A 25-year-old woman seeks evaluation of an itchy lesion on her neck. Almost a year earlier, a similar lesion occurred at the same site after she did yard work. Rhus dermatitis was suspected at that time; a topical corticosteroid was prescribed and the lesion resolved.
What is your clinical impression of this recurrent lesion?
A. Herpes simplex.
B. Contact dermatitis.
D. Insect bite.
E. Fixed drug eruption.