Incision and Drainage Procedure to Treat Abscesses

If your healthcare provider has recommended an incision and drainage procedure to treat an abscess, you may be wondering what the procedure is all about. How does it work, is it uncomfortable, and what happens after?

A dermatologist looking at her patients skin
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Abscesses and Boils

An abscess is a painful infection that can drive many people to the emergency room. They result when oil-producing or sweat glands are obstructed, and bacteria are trapped. This causes an infection and inflammation along with pain and redness.

Abscesses can form anywhere on the body. Commonly, they are found in the armpits, in the pubic region, at the base of the spine, around a tooth, or around a hair follicle (in which case the abscess is known as a boil).

When an abscess forms, the pain and inflammation can make you want to poke and prod it to try to clear it up on your own. However, healthcare providers strongly caution against this, as it often makes the infection worse and can cause lasting complications such as bloodstream infections (sepsis) and scarring.

Instead, visit your dermatologist for a simple and effective procedure known as incision and drainage (I&D).

An abscess will most often not heal on its own or even with antibiotics, and the pus usually needs to be drained to promote healing. An I&D, usually performed right in your healthcare provider's office, can achieve this safely and comfortably.

What an I&D Involves

Using a local anesthetic (such as lidocaine) to numb the area around the abscess so you don't feel pain, a healthcare provider then inserts a scalpel or needle into the skin over the pus and the pus is drained.

Some abscesses have more than one pocket of pus that must be ruptured to release all of the infected material. After the pus has drained, the wound will be cleaned and rinsed with saline solution.

If it is not too large or deep, the wound may be packed with gauze bandaging for 24 to 48 hours to absorb any pus or discharge that continues to drain. If an abscess is particularly large or deep, a drain may be placed in the cleaned wound to keep it open and allow it to continue draining as it heals.

The whole procedure usually takes less than an hour, and very few people experience complications. People who smoke or have a condition that weakens the immune system are more likely to experience complications.

When complications do occur, they are usually mild and can include:

  • Pain
  • Bleeding
  • Scarring

After the Procedure

After the I&D is completed and you are sent home, you should carefully follow your healthcare provider's directions about changing bandages and cleaning the wound. You may also be given antibiotics and told to take pain medicine as needed.

If you notice any signs of infection, such as worsening pain, redness, swelling, bleeding, or fever, you should call your healthcare provider immediately.

Recurrent Abscesses

Oftentimes an abscess is a one-time thing which can be resolved with an I&D. For some people, a condition known as hidradenitis suppurativa involves recurrent abscesses which form in areas such as the groin, the armpits, or under the breast.

In addition to treating individual abscesses with an I&D, other treatments such as adalimumab, Accutane (isotretinoin), or steroid injections may be needed.


Many skin infections are caused by bacteria known as Staphylococcus aureus. Of these bacteria, some strains have undergone mutations which make them resistant to many of the antibiotics we have.

One such strain is called methicillin-resistant staphylococcus (MRSA). Due to their ability to outwit many of our antibiotics, these bacteria are often referred to as "superbugs."

Infections with MRSA can range from very mild skin infections (such as small abscesses) to life-threatening infections. In the U.S. in 2017, there were about 120,000 MRSA infections and 20,000 deaths due to MRSA.

If you experience recurrent cysts, abcesses, or other skin infections, your healthcare provider will likely test you for MRSA. Treatment usually involves an I&D and an antibiotic tailored to your condition.

3 Sources
Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Merck Manual Professional Version. Abscesses.

  2. Kyriakou A, Trigoni A, Galanis N, Sotiriadis D, Patsatsi A. Efficacy of adalimumab in moderate to severe hidradenitis suppurativa: Real life data. Dermatol Reports. 2018;10(2):7859. doi:10.4081/dr.2018.7859

  3. Centers for Disease Control and Prevention. Vital Signs: Epidemiology and Recent Trends in Methicillin-Resistant and in Methicillin-Susceptible Staphylococcus aureus Bloodstream Infections — United States.

Additional Reading
  • Habif, Thomas. "Bacterial Infections." Clinical Dermatology, 6th Edition. Ed. Thomas Habif, MD. New York: Mosby, 2015.

By Heather L. Brannon, MD
Heather L. Brannon, MD, is a family practice physician in Mauldin, South Carolina. She has been in practice for over 20 years.