Rash - Localized And Cause Unknown

Pediatric HouseCalls Online

DEFINTION

  • Rash on one part of the body (localized or clustered).
  • Red or pink rash.
  • Small spots, large spots or solid red.

Causes

  • Main cause: skin contact with some irritant.
  • Other common causes: 8 rashes that you may be able to recognize are listed below. If you suspect one of them, go there. If not, use this guideline.

Return to School

  •  Children with localized rashes do not need to miss any day care or school.

See More Appropriate Topic (instead of this one) If

For an itchy rash:

For an non-itchy rash:


WHEN TO CALL YOUR DOCTOR

Call 911 Now (your child may need an ambulance) If

  • Not moving or too weak to stand

Call Your Doctor Now (night or day) If

  • Your child looks or acts very sick.
  • Purple or blood-colored spots or dots that's not from injury or friction.
  • Bright red area or red streak (but not sunburn).
  • Rash area is very painful.
  • Age under 1 month old and tiny water blisters (like chickenpox).

Call Your Doctor Within 24 Hours (between 9am and 4pm) If

  • You think your child needs to be seen
  • Severe itching or fever is present
  • Looks like a boil, infected sore, pimples or other infected rash
  • Teenager with genital area rash
  • Lyme disease suspected (bull’s eye rash, tick bite or exposure)

Call Your Doctor During Weekday Office Hours If

  • You have other questions or concerns
  • Pimples
  • Peeling fingers
  • Rash longer than 7 days

Parent Care at Home If

  • Mild localized rash and you don't think your child needs to be seen.

HOME CARE ADVICE FOR LOCALIZED RASHES

  1. Avoid the Cause:
    • Try to find the cause.
    • Consider irritants like a plant (e.g., poison ivy), chemicals (e.g., solvents or insecticides), fiberglass, detergents, a new cosmetic, or new jewelry (e.g., nickel).
    • A pet may be the intermediary (e.g., with poison ivy or oak) or your child may react directly to pet saliva.
  2. Avoid Soap: Wash the area once thoroughly with soap to remove any remaining irritants. Thereafter avoid soaps to this area. Cleanse the area when needed with warm water.
  3. Local Cold: Apply a cold wet washcloth or soak in cold water for 20 minutes every 3 to 4 hours to reduce itching or pain.
  4. Steroid Cream: If the itch is more than mild, apply 1% hydrocortisone cream (no prescription needed) every 2 hours until it feels better, then 4 times per day. (EXCEPTION: suspected ringworm.)
  5. Avoid Scratching: Encourage the child not to scratch. Cut the fingernails short.
  6. Contagiousness: Children with localized rashes do not need to miss any day care or school.
  7. Expected Course: Most of these rashes pass in 2 to 3 days.
  8. Call Your Doctor If:
    • Rash spreads or becomes worse
    • Rash lasts over 1 week
    • Your child becomes worse

And remember, contact your doctor if your child develops any of the "Call Your Doctor" symptoms.

^Back to Top

Disclaimer: This information is not intended be a substitute for professional medical advice. It is provided for educational purposes only. You assume full responsibility for how you choose to use this information.

Copyright:Author and Senior Reviewer: Barton D. Schmitt, M.D. Clinical content review provided by Senior Reviewer and Healthpoint Medical Network.

Last Review Date: 9/3/2006

Last Revised: 8/5/2006 2:20:46 PM

Content Set: Pediatric HouseCalls Online

Version Year: 2006

Copyright 1994-2006 Barton D. Schmitt, M.D.

View Anatomic Index of Topics

Is Your Child Sick?

Pediatric HouseCalls Online is a guide for treating your child at home, calling your child's doctor or seeking immediate medical attention. Developed by Dr. Barton Schmitt, MD, FAAP, a board-certified pediatrician on staff at The Children’s Hospital. Dr. Schmitt has developed health tools for parents, including Pediatric HouseCalls Online, the Parent Advice Line and his 3rd edition of Your Child’s Health, which is available in bookstores.

Are You Sick?

David A Thompson, MD is the author of Adult HouseCalls Online. He is a board-certified emergency medicine physician at MacNeal Hospital in Chicago. He has a national reputation in telephone triage, decision support tools, medical information technology and quality improvement. Adult HouseCalls Online is a decision support tool for adults that has been reviewed and approved by adult physicians.

Related Health Information

There are 66 related articles for parents. The top 5 are shown below.

View All

A Parent's Guide to Healthy, Happy Kids! Subscribe to have our quarterly newsletter mailed to your home.