Boils are bacterial infections that form under your skin at a hair follicle. A carbuncle is a cluster of boils that have multiple pus “heads.” They’re tender and painful, and cause a severe infection which could leave a scar. A carbuncle is also called a staph skin infection.
The most obvious first symptom of a carbuncle is a red, irritated lump under your skin. Touching it may be painful. It can range from the size of a lentil to a medium-sized mushroom.
The size of the lump increases over a few days as it quickly becomes filled with pus. It eventually develops a yellow-white tip or “head” that will rupture and drain the pus. Nearby areas may also experience swelling.
Other symptoms may include: Itching before the lump appears, bodily aches, fatigue, fever and chills, skin crustiness or oozing pus usually appears within one day of carbuncle formation.
What are the causes of a carbuncle?
A carbuncle usually develops when Staphylococcus aureus bacteria enter your hair follicles. These bacteria are also referred to as “staph.” Scrapes and other broken skin make it easy for bacteria to enter your body and cause an infection. This can result in boils or carbuncles (a cluster of boils) filled with fluid and pus.
The moist parts of your body are particularly susceptible to this infection because bacteria thrive in these areas. Carbuncles are usually found on the back of the neck, shoulders, or thigh. They can also appear on your face, neck, armpits, or buttocks; or any area you sweat or experience friction.
What are the risk factors for developing a carbuncle?
Being in close contact with someone who has a carbuncle increases your chances of developing one. The following factors also increase the risk of developing a carbuncle: Poor hygiene, diabetes, a weak immune system, dermatitis, kidney disease, liver disease, shaving and other activities that break the skin
Home care
To soothe your pain, speed healing, and lower the risk of spreading the infection:
Place a clean, warm, moist cloth on your carbuncle several times a day. Leave it on for 15 minutes. This will help it drain faster.
Keep your skin clean with antibacterial soap.
Change your bandages often if you’ve had surgery.
Wash your hands after touching your carbuncle.
