Patchy back

A car mechanic in his early 40’s came to the office complaining of skin rash. He has had the rash for several years with intermittent flare ups during summer months. He has a past history of hypertension, which is well controlled on a combination of metoprolol and hydrochlorothiazide. Exam shows scattered hypo-pigmented, salmon colored coalescing macules on his trunk, back and upper extremities. He lacks health insurance and requests the cheapest treatment option.

Which of the following appropriate treatment option is available for $4?

1. Diflucan 200mg 2 tab po x 1 dose
2. Selenium sulfide 2.5% lotion
3. Ketoconazole 200mg 2 tab po x 1 dose-ANSWER
4. Itraconazole 100mg 4 tab po x 1 dose