Incision and drainage of skin abscess General Surgery

Incision and drainage of a skin abscess is a minor procedure to open a pocket of pus under the skin so it can drain.

Incision and drainage of skin abscess procedure illustration

Overview

Incision and drainage of a skin abscess is a minor procedure to open a pocket of pus under the skin so it can drain. A local anesthetic is used to numb the area. The clinician makes a small cut, breaks up any pockets inside, and lets the fluid drain. The wound may be left open with a small piece of gauze or a soft drain to keep it from closing too quickly. This procedure is often the main treatment for an abscess. Antibiotics may be added when there is surrounding skin infection, fever, multiple sites, or certain health conditions. A sample of the pus is sometimes sent to a lab to help choose an antibiotic if needed.

Overview Preparation Clinical Info Recovery FAQ References

Also known as: I&D of abscess, Abscess drainage, Lancing a boil

Recovery
Same day
Return to Work
Same day

Preparation & Next Steps

Everything you need to know before and after your procedure

Before Care

  • Confirm how you will get home if sedation is planned; local anesthetic alone usually does not require a driver
  • Share allergies, especially to local anesthetics, antiseptics, or adhesives
  • Provide a current list of medicines and supplements, including blood thinners
  • Ask if any lab tests or an ultrasound are planned to locate the fluid pocket
  • Wear loose clothing that allows easy access to the area
  • Plan for wound care supplies and a protective dressing for the ride home
  • Avoid applying lotions, oils, or makeup to the area on the day of the procedure
  • Expect a consent process and a brief time-out to confirm the site
  • Fasting is not usually needed for local anesthesia; follow any instructions if sedation is used

After Care

  • Keep the dressing clean and dry; change it as instructed by your care team
  • Do not soak the area in a bath, hot tub, or pool until the wound has closed
  • Hand hygiene before and after touching the wound or dressing helps prevent spread of germs
  • If packing or a soft drain was placed, a follow-up visit is typically scheduled within 1 to 3 days to check or remove it
  • Use over-the-counter pain relievers per label instructions unless told otherwise by a clinician
  • If an antibiotic was prescribed, take it as directed and finish the course
  • Watch for increasing redness, swelling, warmth, pain, fever, foul odor, or red streaks, and contact a clinician if these occur
  • Avoid squeezing or poking the wound; allow it to drain and heal
  • Keep used dressings in a sealed bag and discard in household trash; do not share towels or personal items
  • Ask when to resume exercise, heavy lifting, or contact sports if these may stress the area

Clinical Information

Important medical details about this procedure

Indications

  • Painful, red, warm, and tender lump with a soft or fluctuant center
  • Boil or furuncle that has come to a head
  • Abscess not improving with warm compresses
  • Abscess with spreading redness or increasing pain
  • Abscess causing limited movement or function
  • Need to obtain a sample for culture

Alternatives

  • Warm compresses and watchful waiting for very small early lesions
  • Antibiotics when there is no drainable pocket or for select mild cases
  • Needle aspiration in limited situations
  • Imaging-guided drainage for deeper collections
  • Referral to a specialist for high-risk locations

Risks

  • Bleeding, bruising, or pain at the site
  • Scarring or skin discoloration
  • Incomplete drainage and need for repeat procedure
  • Worsening or spread of infection
  • Injury to nearby structures such as nerves or blood vessels
  • Allergic reaction to local anesthetic
  • Recurrence of the abscess

Contraindications

  • Suspected deep or large abscess needing imaging or operating room management
  • Areas that often need specialist care (for example, face near the nose and upper lip, hand, genital or perirectal area, areola)
  • Uncontrolled bleeding disorder or use of blood thinners without a plan
  • Extensive surrounding cellulitis with systemic illness
  • Possible involvement of implanted medical devices or prosthetic joints

Recovery Timeline

What to expect during your recovery

Many people notice less pain and pressure within a couple of days after drainage. Wound healing time varies by size and location and may take days to weeks. Follow-up is common within the first few days.

Typical Range

Same day

Return to Work

Same day

Recovery Milestones

Day 0–1

Resume light daily activities while keeping the dressing protected

Day 1–3

Follow-up visit for wound check and possible packing removal

Day 1–3

Pain and pressure often begin to improve

Day 3–7

Gradual reduction in drainage and swelling

Day 7–14

Ongoing wound healing; discuss scar care and activity goals at follow-up

Frequently Asked Questions

Common questions and expert answers about this procedure

What happens during incision and drainage?

The area is cleaned and numbed, a small cut is made to release pus, pockets are gently opened, and the wound is dressed. A small packing or drain may be placed.

Will I need antibiotics?

Incision and drainage is the main treatment. Antibiotics are added when there are risk factors or signs of spreading infection, or based on culture results.

Does it hurt?

You receive local anesthetic to numb the area. You may feel pressure during the procedure and soreness after. Over-the-counter pain relief is commonly used.

What is packing, and is it always used?

Packing is gauze placed in the cavity to keep it open briefly for drainage. It is not always needed; use depends on the size and location of the abscess.

Will there be a scar?

A small scar is common. Size depends on the abscess and incision. Scar appearance often fades over time.

Can the abscess come back?

Recurrence can happen, especially with certain bacteria like MRSA or if not all pockets drained. Good wound care and hygiene help reduce risk.

Will the fluid be tested?

A sample is sometimes sent for culture to identify the germ and guide antibiotic choices if needed.

How long does the visit take?

The procedure itself is usually brief. Expect extra time for numbing, set-up, and aftercare instructions.