Why this card exists
A multinational survey of HS patients found that 18.3% had visited an emergency department five or more times for HS symptoms, and 37.0% rated access to dermatology as difficult. A US cohort study of 20,269 patients found frequent return emergency-department visits alongside comparatively low dermatology follow-up.
An acute flare is a poor moment to explain your history to someone who has never seen you before. This card keeps the essential facts in one place, so you do not have to do that while in pain.