Rash or Redness - Localized

Is this your child's symptom?


Causes of Localized Rash or Redness

Localized Versus Widespread Rash: How to Decide

Contact Dermatitis

Contact dermatitis is a common cause of?a rash in one area. This is especially true of a small rash that will not go away. Contact dermatitis usually starts as raised red spots. It can change to blisters, as in poison ivy. The rash is itchy. Contact dermatitis is an allergic skin rash. The location of the rash may suggest the cause:

When to Call Us for Rash or Redness - Localized

Call 911 Now

  • Not moving or too weak to stand
  • You think your child has a life-threatening emergency

Call Doctor or Seek Care Now

  • Purple or blood-colored spots or dots that are not from injury or friction
  • Age less than 1 month old and tiny water blisters
  • Your child looks or acts very sick
  • You think your child needs to be seen, and the problem is urgent

Contact Doctor Within 24 Hours

  • Bright red area or red streak (but not sunburn)
  • Rash is very painful
  • Fever is present
  • Severe itching
  • Looks like a boil, infected sore or other infected rash
  • Teenager with a rash on the genitals
  • Lyme disease suspected (bull's eye rash and tick bite or contact)
  • You think your child needs to be seen, but the problem is not urgent

Contact Doctor During Office Hours

  • Blisters without a clear cause. Exception: poison ivy.
  • Pimples (use an antibiotic ointment until seen)
  • Red rash in skin fold (neck, armpit or under breasts)
  • Rash grouped in a stripe or band
  • Peeling fingers
  • Rash lasts more than 7 days
  • You have other questions or concerns

Self Care at Home

  • Mild localized rash or redness

Care Advice for Localized Rashes

What You Should Know About Localized Rashes:

Avoid the Cause:

Do Not Use Soap:

Cold Soaks for Itching:

Steroid Cream for Itching:

Try Not to Scratch:

Return to School:

What to Expect:

Call Your Doctor If:

Impetigo of Left Cheek

This shows impetigo on the face. Impetigo is a skin infection caused by bacteria. The infection causes a red sores which leak fluid. This area will then dry and become crusty as it heals.



Diaper Rash

This photo shows a red diaper rash in the area under the diaper.

Any diaper rash that lasts longer than a couple days can become infected with yeast. Note the red spots outside the main area of redness.

If a yeast infection is suspected, clotrimazole cream (such as Lotrimin; over-the-counter) should be applied 4 times per day.



Fifth Disease

There is redness and puffiness of both cheeks; this is the first sign of Fifth's Disease.




Nickel Allergy Rash - Abdomen

This shows a rash that was caused from the skin touching the snap on the jeans. This person is allergic to the nickel in the snap. The area is red and crusty.



Allergic Reaction to Nickel - Ear Lobe

This shows a rash that was caused from a nickel allergy. The allergic rash is from the nickel (metal) in the earring. It is red, crusty and moist.



Nickel Allergy

This shows a rash that was caused from the skin touching the snap on the jeans. This person is allergic to the nickel in the snap. The area is raised and crusty.




Ringworm Rash on Arm

This is a picture of ringworm. The area is round and pink. It has a raised, rough scaly border. The ring slowly grows in size. It is often slightly itchy.

This is caused by a fungus, not a worm. It can be passed from person to person. If you notice a rash like this, contact your doctor for treatment.




Copyright 2000-2025 Schmitt Pediatric Guidelines LLC.