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    Molluscum Contagiosum

    Updated at March 27th, 2023

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    Definition

    • Molluscum are small raised growths that have a smooth, waxy surface
    • Viral infection of the skin

    Health Information

    Symptoms

    • Small bumps with a waxy or pearl-colored, smooth surface
    • May have a dimple (indent) in center
    • Bumps are firm with a core of white material.
    • Are many different sizes, from pinhead to ¼ inch (3 to 6 mm) across
    • Can occur anywhere on the body, but usually stay in just one area
    • Are sometimes itchy, but not painful
    • Usually age 2 to 12 years
    • Most infected children get 5 to 10 molluscum

    Cause

    • Molluscum is caused by a poxvirus. This is a different virus than the one that causes warts.
    • Friction or picking at them causes them to increase in number.

    To Treat or Not to Treat

    • Some doctors advise not treating molluscum if there are only a few. Reason: Molluscum are harmless, painless, and have a natural tendency to heal and disappear.
    • Special treatment of molluscum is considered for the reasons below:
    • Your child picks at them
    • They are in areas of friction (for example, the armpit)
    • They are spreading rapidly OR
    • You feel they are a cosmetic problem

    Prevention of Spread to Others

    • Avoid baths or hot tubs with other children. Reason: Molluscum can spread in warm water.
    • Also, avoid sharing washcloths or towels.
    • Contact sports: Molluscum can spread to other team members. Molluscum should be covered or treated.
    • Time it takes to get them: 4 to 8 weeks after close contact

    Care Advice

    1. Overview:
      • Molluscum are harmless and painless.
      • Wart-removing acids are not helpful.
      • Duct tape treatment will make them go away faster.
      • Here is some care advice that should help.
    2. Duct Tape - Cover the Molluscum:
      • Covering molluscum with duct tape can irritate them. This turns on the body’s immune system.
      • Cover as many of the molluscum as possible. (Cover at least 3 of them.)
      • The covered molluscum become red and start to die. When this happens, often ALL molluscum will go away.
      • Try to keep the molluscum covered all the time.
      • Remove the tape once per day, usually before bathing. Then replace it after bathing.
      • Some children don’t like the tape on at school. At the very least, tape it every night.
    3. Prevention of Spread to Other Areas of Your Child’s Body:
      • Discourage your child from picking at the molluscum.
      • Picking it and scratching a new area with the same finger can spread molluscum. A new molluscum can form in 1 to 2 months.
      • Chewing or sucking on them can lead to similar bumps on the face.
      • If your child is doing this, cover the molluscum with a Band-Aid.
      • Keep your child’s fingernails cut short and wash your child’s hands more often.
    4. What to Expect:
      • Without treatment, molluscum go away in 6 to 18 months.
      • If covered with duct tape, they may go away in 2 or 3 months.
      • If picked at often, molluscum can become infected with bacteria. If this happens, they change into crusty sores (impetigo).
    5. Return to School:
      • Your child doesn’t have to miss any child care or school.
      • There is a mild risk of spread to others.

    Call Your Doctor If

    • Your child continues to pick at the molluscum
    • New molluscum develop after 2 weeks of treatment
    • Molluscum are still present after 12 weeks of treatment
    • You think your child needs to be seen


    Author: Barton Schmitt MD, FAAP

    Copyright 2000-2020 Schmitt Pediatric Guidelines LLC