Carbuncle (Furuncle)

Boil / Carbuncle

Overview

A furuncle (boil) is a deep infection of a hair follicle resulting in a painful, pus-filled nodule. A carbuncle is a cluster of interconnected furuncles forming a larger, deeper area of infection with multiple drainage points. Both are most commonly caused by Staphylococcus aureus and tend to occur in areas of friction and sweating.

Key Symptoms

• Painful, red, swollen nodule centered around a hair follicle
• Develops a central white or yellow pustular head
• Surrounding skin is red, warm, and tender
• Carbuncles have multiple heads and drain from several points
• May cause fever and malaise, especially with carbuncles
• Tender regional lymph nodes may be present

Affected Areas

Back of neck, Face, Axillae, Thighs, Buttocks

Care Instructions

1. Apply warm, moist compresses several times daily to promote drainage.
2. See a healthcare provider if the boil is large, on the face, or does not drain on its own.
3. Do not squeeze or cut open a boil at home.
4. Take prescribed antibiotics if your provider recommends them.
5. Keep the area clean and covered after drainage.
6. Wash hands frequently and avoid sharing towels or razors to prevent spread.

Medical Disclaimer: This information is for educational purposes only and does not replace professional medical advice. Always consult a qualified dermatologist for diagnosis and treatment.

Prevalence: Common; furuncles affect approximately 2% of the population annually