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Skin abscess

Abscess - skin; Cutaneous abscess; Subcutaneous abscess; MRSA - abscess; Staph infection - abscess

A skin abscess is a buildup of pus in or on the skin.

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Skin layers

Causes

Skin abscesses are common and affect people of all ages. They occur when an infection causes pus to collect in the skin.

Skin abscesses may occur after developing:

A skin abscess may occur anywhere on the body.

Symptoms

Symptoms may include:

Exams and Tests

Your health care provider can diagnose the problem by looking at the affected area. The drainage from the sore may be sent to the lab for a culture. This can help identify the cause of the infection.

Treatment

You can apply moist heat (such as warm compresses) to help the abscess drain and heal faster. DO NOT push and squeeze on the abscess.

Your provider may cut open the abscess and drain it. If this is done:

You may need to take antibiotics by mouth to control the infection.

If you have methicillin-resistant Staphylococcus aureus (MRSA) or another staph infection, follow instructions for self-care at home. 

Outlook (Prognosis)

Most skin abscesses can be cured with proper treatment. Infections caused by MRSA respond to specific antibiotics.

Possible Complications

Complications that can occur from an abscess include:

When to Contact a Medical Professional

Call your provider if you have any signs of skin infection, including:

Call your provider right away if you develop new symptoms during or after treatment of a skin abscess.

Prevention

Keep the skin around minor wounds clean and dry to prevent infection. Call your provider if you notice signs of infection. Take care of minor infections promptly.

Related Information

Folliculitis
Boils
Endocarditis
Osteomyelitis
Methicillin-resistant Staphylococcus aureus (MRSA)

References

Ambrose G, Berlin D. Incision and drainage. In: Roberts JR, Custalow CB, Thomsen TW, eds. Roberts and Hedges' Clinical Procedures in Emergency Medicine and Acute Care. 7th ed. Philadelphia, PA: Elsevier; 2019:chap 37.

Marks JG, Miller JJ. Localized erythema. In: Marks JG, Miller JJ, eds. Lookingbill and Marks' Principles of Dermatology. 6th ed. Philadelphia, PA: Elsevier; 2019:chap 15.

Que Y-A, Moreillon P. Staphylococcus aureus (including staphylococcal toxic shock syndrome). In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases. 9th ed. Philadelphia, PA: Elsevier; 2020:chap 194.

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Review Date: 11/10/2020  

Reviewed By: Ramin Fathi, MD, FAAD, Director, Phoenix Surgical Dermatology Group, Phoenix, AZ. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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