A boil is a deep infection on the skin and more specifically a pilosebaceous follicle, that is to say, the cavity in which each hair originates. It is a kind of small abscess caused by a bacterium: staphylococcus aureus.
The boil is like a small knob surmounted by a white mound (called bourbillon) filled with pus. As it develops from the pilosebaceous follicle, it often has the distinction of being centered by a hair.
The boil is hard and painful, signifying inflammation due to infection. It evolves in 5 to 10 days days towards the necrosis with elimination of the bourbillon, and leaves a small red crater on the skin. The boil can be single or multiple.
The boil therefore corresponds to a localized skin infection, which may present certain complications: spreading locally, but also staphylococcal infection can affect other organs.
Even if it is an infection, the treatment of a boil is not necessarily done by antibiotic, the infection is primarily localized.
To prevent the risk of staph infection, it is important to wash your hands frequently, especially when you are in a hospital, where this type of infection can have serious consequences for hospitalized patients.