

If your immune system is weakened for any reason, you're more susceptible to boils and carbuncles. Because they damage your skin's protective barrier, skin problems, such as acne and eczema, make you more susceptible to boils and carbuncles. This disease can make it more difficult for your body to fight infection, including bacterial infections of your skin. You're more likely to develop an infection if you live with someone who has a boil or carbuncle. Close contact with a person who has a staph infection.Risk factorsĪlthough anyone - including otherwise healthy people - can develop boils or carbuncles, the following factors can increase your risk: Boils sometimes develop at sites where the skin has been broken by a small injury or an insect bite, which gives the bacteria easy entry.

A bump forms as pus collects under the skin. Most boils are caused by Staphylococcus aureus, a type of bacterium commonly found on the skin and inside the nose. Worsens rapidly or is extremely painful.Occurs on your face or affects your vision.But see your doctor if you have more than one boil at a time or if a boil: You usually can care for a single, small boil yourself. People who have a carbuncle often feel unwell in general and may experience a fever and chills. Compared with single boils, carbuncles cause a deeper and more severe infection and are more likely to leave a scar. Development of a yellow-white tip that eventually ruptures and allows the pus to drain outĪ carbuncle is a cluster of boils that form a connected area of infection.An increase in the size of the bump over a few days as it fills with pus.Reddish or purplish, swollen skin around the bump.A painful, red bump that starts out small and can enlarge to more than 2 inches (5 centimeters).

Signs and symptoms of a boil usually include: Boils can occur anywhere on your skin, but appear mainly on the face, back of the neck, armpits, thighs and buttocks - hair-bearing areas where you're most likely to sweat or experience friction.
