16th July 2026

A 35-year-old businessman was referred by his GP to the dermatology outpatient clinic with a rash which did not respond to a prolonged course of topical fluconazole.

A 35-year-old businessman was referred by his GP to the dermatology outpatient clinic with a rash which did not respond to a prolonged course of topical fluconazole. On further examination, you noticed a similar rash on his trunk and finger extremities.

Given the likely diagnosis, what is the next best step? 

Select the SINGLE most appropriate option from the list below. Select ONE option only.