The disease can strike almost without warning, causing few obvious symptoms until it has already spread and become far harder to treat. But it's a myth that its impossible to spot early.

The disease can strike almost without warning, causing few obvious symptoms until it has already spread and become far harder to treat. But it's a myth that its impossible to spot…

It's an agonising and disfiguring skin condition that plagues one in every 100 Britons - yet very few have ever heard of hidradenitis suppurativa (HS).