What causes ringworm?

Ringworm is caused by certain kinds of fungus. These are normally found in the soil and on the skin of humans and animals.

How is ringworm spread?

Ringworm can be spread in the following ways:

• Touching the rash on an infected person, such as during play or contact sports like wrestling

• Sharing an item, such as a comb, towel, or hat that has been contaminated by an infected person

• Contact with an infected animal. Find out if your pets have it and treat them. Your dogs or cats may have scaly, itchy, hairless areas that should be treated right away.

What are the symptoms of ringworm?

Symptoms vary depending on the area of the infection, but can include:

• On light-colored skin, round pink or red patches with a scaly, red border that looks like a red ring

• On dark skin, the patches are often brown or gray

• Itching in the affected area(s)

• Bald patches with scalp infections

• Discolored nails with nail infections

How is ringworm diagnosed?

Ringworm is diagnosed by how it looks. To get more information, the healthcare provider will ask about your child’s symptoms and health history. Your child will also be examined. You will be told if any tests are needed. Your healthcare provider may also do a painless skin scraping to look at the scales under the microscope or send it to the lab for further testing.

How is ringworm treated?

Ringworm on the body generally goes away within 4 or 6 weeks of treatment.

You can treat your child’s ringworm by:

• Applying over-the-counter topical antifungal cream to the affected areas as directed by the healthcare provider. Before and after each application, wash your hands with warm water and soap.

• Washing your child’s hair and body with antifungal shampoo and body wash.

• Ringworm on the scalp or nails must be treated with oral medicine prescribed by the healthcare provider. Make sure that your child takes all of the medicine, even if symptoms improve.

When to call your healthcare provider

Call your provider if your child has:

• Symptoms that don't get better within 6 to 8 weeks of starting treatment

• Signs of infection, such as pus, swelling, or fluid leaking in the affected areas

How can you prevent the spread of ringworm?

Follow these steps to keep your child from passing ringworm on to others:

• Teach your child to wash their hands often with soap and clean, running water often. Handwashing is especially important after touching the affected areas.

• Don't let your child share personal items such as hats, combs, towels, or clothing with others.

• If your child has ringworm, keep the area covered with a bandage so that they don't pass the infection to others at school.

• Don't have contact with infected pets.