Skin Cyst in Children: Care Instructions

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Overview

A skin (epidermal) cyst is a small, round lump in the top layer of skin called the epidermis. These cysts can form when a hair follicle or oil gland becomes blocked. They may form on the face, neck, back, chest, or genitals. But they can form anywhere on the body.

These cysts usually don't cause problems. They may not need treatment. They tend not to hurt, but they can sometimes become swollen and painful. They also may break open.

If a cyst is swollen and hurts, the doctor may inject it with a medicine or treat it with antibiotics if it's infected. But sometimes a painful or infected cyst will need to be drained or removed. In those cases, the doctor will use numbing medicine before the procedure.

Follow-up care is a key part of your child's treatment and safety. Be sure to make and go to all appointments, and contact your doctor if your child is having problems. It's also a good idea to know your child's test results and keep a list of the medicines your child takes.

How can you care for your child at home?

If the cyst was not opened

  • Don't squeeze the skin cyst or poke it with a needle to open it. This can cause swelling, redness, and infection.
  • Keep the area clean with soap and water.

After the cyst is opened

  • If your doctor told you how to care for the wound, follow your doctor's instructions. If you did not get instructions, follow this general advice:
    • Wash the area with clean water 2 times a day. Don't use hydrogen peroxide or alcohol. They can slow healing.
    • You may cover the area with a thin layer of petroleum jelly, such as Vaseline, and a nonstick bandage.
    • Apply more petroleum jelly and replace the bandage as needed.
    • Avoid using an antibiotic ointment unless your doctor recommends it.
  • If your child has stitches, you may get other instructions. Your child will have to come back to have the stitches removed.

When should you call for help?

Contact your doctor now or seek immediate medical care if:

  • Your child has symptoms of infection, such as:
    • Increased pain, swelling, warmth, or redness.
    • Red streaks leading from the area.
    • Pus draining from the area.
    • A fever.

Watch closely for changes in your child's health, and be sure to contact your doctor if:

  • The cyst is growing or changing.
  • Your child does not get better as expected.

Where can you learn more?

Go to http://www.healthwise.net/patientEd

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Current as of: February 27, 2026

Author: Ignite Healthwise, LLC Staff

Clinical Review Board
All Ignite Healthwise, LLC education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

Current as of: February 27, 2026

Author: Ignite Healthwise, LLC Staff

Clinical Review Board
All Ignite Healthwise, LLC education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.