What is a furuncle/boil?

A furuncle (boil) is an acute, round, tender, circumscribed, perifollicular abscess that generally ends in central suppuration. Deep and necrotic infection of the pilosebaceous follicle S. aureus +++. If recurrent abscess evolution undergoing small family epidemics: toxinogenic research infection (Panton-Valentiner leucocidinresponsible for necrosis) and chronic carriage Clinical feature: inflammatory papule or nodule, painful, centered by a pustule on a hairy area (the hair has disappeared due to necrosis); evolution towards a central necrotic zone in a few days