Carbuncle (skin infection)

About Carbuncle (skin infection)

An abscess (collection of pus caused by a bacterial infection) that is larger than a boil—as small as a peanut to as large as a golf ball. The infection arises from hair follicles and rapidly turns into an abscess (a collection of pus). The most common kind of bacteria causing an abscess is Staphylococcus aureus. A more dangerous, antibiotic-resistant form of Staphylococcus aureus, called MRSA (methicillin resistant Staphylococcus aureus), is becoming more common. Abscesses can occur anywhere on the body but are more commonly found on the back, neck or in skin areas that are shaved frequently. The infection can be contagious and is more common in those people with diabetes or other disorders that depress the immune system.

Symptoms

Swollen red area of skin that is tender. The affected area is warm to the touch. There may be a white center and oozing of pus. Associated symptoms may include fatigue, fever, and nausea.

Tests & Diagnostics

A history and physical will be done. No other tests are generally necessary.

Common tests: Wound culture.

Path 3 — Prescription Options

Prescription medications

Conventional treatment summary

Drainage of the material in the carbuncle must occur for complete recovery. This can occur spontaneously and can be helped by placing a warm moist cloth over the area. At times this is not successful requiring a medical provider to open the area with a small scalpel, to drain the pus out. Antibiotics may be prescribed by mouth such as cephalexin (Keflex), clindamycin (Cleocin), or erythromycin (Ery-Tab). If the provider is concerned about MRSA (methicillin resistant staphylococcus aureus) sulfamethoxazole/trimethoprim (Bactrim, Septra) or linezolid (Zyvox) may be prescribed. At times a topical antibiotic such as mupirocin (Bactroban) may be administered.

Medical specialties

Internal Medicine · Dermatology · Pediatrics · Family Practice

This page is educational content, not medical advice. Always consult a qualified clinician for diagnosis and treatment of Carbuncle (skin infection).