A boil is an inflamed, painful, pus-filled swelling under the skin. It is caused by a bacterial infection of a hair follicle. Clusters of boils may interconnect to form a carbuncle.
Common sites of boils are moist areas of skin, such as the groin, or areas where friction occurs, such as the neck.
Recurrent boils may occur in people with diabetes or those whose resistance to infection is lowered. Boils often clear up without treatment.
They may burst, release pus, and then heal, or may just gradually disappear.
A large, persistent, or very painful boil may need to be drained by a doctor. Antibiotics may also be prescribed

Othere related diseases

ERYSIPELAS
Erysipelas is a bacterial infection of the upper layers of the skin, usually as a result of bacteria entering through a break in the skin—for example, from a ...

FUNGAL NAIL INFECTION
Known medically as onychomycosis, fungal nail infections cause the nails to become discolored, thickened, distorted, and brittle. Affected nails may also cause ...

HEAD LICE
Head lice are tiny insects that live in hair and lay eggs (nits) on the base of hairs. Head lice are harmless, but their bite causes intense itching. They can b...

HEMANGIOMA
A hemangioma is a birthmark caused by abnormal blood vessels under the skin. Types of hemangioma include stork marks (small, flat, pink or red patches); strawbe...

IMPETIGO
Impetigo is a bacterial skin infection, common in children, that usually occurs around the chin, mouth, and nose. The condition is highly contagious and is spre...

INGROWN TOENAIL
An ingrown toenail occurs when one or both edges of the nail curl under and grow into the adjacent skin. This often causes the skin to become inflamed and painf...

INTERTRIGO
Intertrigo is inflammation of the skin due to two surfaces rubbing together. It often affects skin under the breasts, between the thighs, in the armpits, or bet...

KELOID
A keloid is a firm, itchy, irregularly shaped overgrowth of scar tissue that forms on the surface of a wound. Keloids are the result of overproduction of the sk...