Acute generalised exanthematous pustulosis: an unusual cause of carpal tunnel syndrome.

A 65-year-old man presented with generalised erythematous pustular rash following an insect bite. He was initially treated with antibiotics for presumed cellulitis. He subsequently developed bilateral carpal tunnel syndrome. Skin biopsy confirmed a diagnosis of acute generalised exanthematous pustulosis, which resolved with oral prednisolone. He also had steroid injections for his bilateral carpal tunnel syndrome and this recovered uneventfully. Clinical presentation, histological assessment and EuroSCAR criteria were key to the diagnosis and management of this case.