- Open sore or closed, red-domed nodule, may drain pus. Localised swelling with induration.
- Common. Usually caused by Staphylococcus aureus.
- Develops after a minor wound, injury, or as a complication of folliculitis or boils.
- May occur anywhere on the body.
- Tender and warm. Fever or rigors.
- Incision and drainage when fluctuant.
- Heat application may speed healing, reduce inflammation and relieve pain.
- Elevate the affected part.
- If recurrent, consider checking for diabetes and eradication from carriage sites.
- Confluent infection of multiple, contiguous hair follicles.
- Infection limited to the subcutaneous tissue by overlying dense skin and fascia.
- Usually caused by Staphylococcus aureus.
- Commonly occur on the back of the neck and in patients with diabetes.
- Incision and drainage.
- Fasting blood glucose in non-diabetics.
- Swab and eradicate carriage sites.