25th August 2023

A 40-year-old man visits his GP with a 6-month history of recurrent episodes of an itchy rash

A 40-year-old man visits his GP with a 6-month history of recurrent episodes of an itchy rash with red, raised patches. He reports that the patches typically last more than a day and often leave a bruise-like mark. Despite self-medicating with over-the-counter antihistamines, his symptoms persist.

What is the next best step in managing his condition?