Pityriasis rosea is a mild, common rash. It causes the skin to be scaly, pink, and inflamed. The rash can last from 1 to 3 months and usually leaves no lasting marks. It's not thought to be contagious.

piht-uh-RI-uh-sis ROH-zee-uh

Experts don't know what causes pityriasis rosea. It is believed to be caused by a virus. It's usually seen in children, teens, and young adults. Some children may have a cold before the rash. The rash is more common in spring and fall.

The rash often starts with a large pink or tan oval area on the chest, stomach, or back. This patch (herald patch) is often followed by smaller pink or tan patches elsewhere on the body. They often show up on the back, neck, arms, and legs. On the back, the rash may form a pattern that resembles the branches of a Christmas tree. The scaly rash may begin to heal on its own in 4 to 6 weeks and will go away by 14 weeks.

Symptoms may be different in each child. They may include:

• Severe tiredness (fatigue).
• Aches.
• Itching.

The symptoms of pityriasis rosea may look like other skin conditions or health problems. Always talk with your child's doctor for a diagnosis.

The rash is fairly unique. Pityriasis rosea is often diagnosed based on a health history and physical exam of your child. Your child may also need blood tests to rule out other conditions that might look like pityriasis rosea.

Treatment will depend on your child's symptoms, age, and general health. It will also depend on how bad the condition is.

The goal of treatment is to ease symptoms, such as itching. The rash will go away on its own. Treatment will be chosen by your child's doctor based on how bad the rash is. It may include:

• Medicated lotions and creams.
• Medicines taken by mouth.
• Cool baths with or without oatmeal.
• Ultraviolet exposure.
• Cool compresses.

Pityriasis rosea is a mild skin rash that will get better on its own. Contact your child's doctor if:

• Your child becomes very sick.
• The rash doesn't get better or gets worse.
• Itching or other symptoms cause your child a lot of discomfort.
• Your child gets a bacterial infection from scratching the rash.

• Pityriasis rosea is a mild, common rash. It causes the skin to be scaly, pink, and inflamed.
• The rash is often seen in children, teens, and young adults.
• The rash will get better on its own in 1 to 3 months.
• Pityriasis rosea is not thought to be contagious.
• The goal of treatment is easing discomfort and itching.

Tips to help you get the most from a visit to your child's doctor:

• Know the reason for the visit and what you want to happen.
• Before your visit, write down questions you want answered.
• At the visit, write down the name of a new diagnosis, and any new medicines, treatments, or tests. Also write down any new instructions your doctor gives you for your child.
• Know why a new medicine or treatment is prescribed and how it will help your child. Also know what the side effects are.
• Ask if your child's condition can be treated in other ways.
• Know why a test or procedure is recommended and what the results could mean.
• Know what to expect if your child does not take the medicine or have the test or procedure.
• If your child has a follow-up appointment, write down the date, time, and purpose of that visit.
• Know how you can contact your child's doctor after office hours. This is important if your child becomes ill and you have questions or need advice.