Aurelio Vance’s condition is mild by every clinical measure. He had not been swimming since he was nineteen.

Under-treatment driven by fear of a treatment is more common in this clinic than over-treatment, and the fear is usually acquired from well-meaning advice.

Photograph-based triage moved most urgent lesion referrals to an answer within a fortnight, and moved the queue for benign findings out of the way entirely.

Severity and impact are barely correlated. If you only measure severity, you miss most of the problem.

Illustrative composite

Adherence to topical treatment is low almost everywhere and is a design problem rather than a character one: the regimens are long, greasy and unpleasant.

“Somebody asked,” he says. “In eight years, nobody had asked.”