A 41-year-old woman presents for evaluation of lesions on her face as shown. She previously noticed small bumps on her face in affected areas 3 weeks ago, after which she used desonide ointment daily for roughly 2 weeks with expansion of the affected areas. Which of the following is the most appropriate next step in the management of the patient?
A. Oral tetracycline
B. Patch testing
C. Skin biopsy
D. Topical triamcinolone
E. Zinc supplementation
