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Healthy skin is a barrier between the inside of the body and the outside environment. A rash means some change has affected the skin. A rash is generally a minor problem or is part of an illness that will go away on its own. A rash may be caused by contact with a substance outside the body, such as poison ivy (contact dermatitis), or by other more serious illnesses, such as measles or scarlet fever (strep throat with rash).
Generalized rashes over the whole body that are caused by viruses are more common in babies and young children than in adults. A rash may be caused by a viral illness if the child also has a cold, a cough, or diarrhea, or is in a day care setting where he or she is with other children with viral illnesses. Most rashes caused by viruses are not serious and usually go away over a few days to a week. Home treatment is often all that is needed to treat these rashes.
After a child has had a rash caused by a virus, his or her body generally builds an immunity to that virus. This immunity protects the child from getting that specific viral illness and rash again. Common rashes caused by viruses include:
Localized rashes which affect one area of the body have many different causes and may go away with home treatment. Common localized rashes that occur during childhood include:
Rashes that may require a visit to a doctor include:
To know how serious the rash is, other symptoms that occur with the rash must be evaluated. Check your child's symptoms to decide if and when your child should see a doctor.
Many things can affect how your body responds to a symptom and what kind of care you may need. These include:
You have answered all the questions. Based on your answers, you may be able to take care of this problem at home.
If you're not sure if a child's fever is high, moderate, or mild, think about these issues:
With a high fever:
With a moderate fever:
With a mild fever:
Abnormal bleeding means any heavy or frequent bleeding or any bleeding that is not normal for you. Examples of abnormal bleeding include:
When you have abnormal bleeding in one area of your body, it's important to think about whether you have been bleeding anywhere else. This can be a symptom of a more serious health problem.
Certain health conditions and medicines weaken the immune system's ability to fight off infection and illness. Some examples in children are:
Symptoms of infection may include:
Temperature varies a little depending on how you measure it. For children up to 11 years old, here are the ranges for high, moderate, and mild according to how you took the temperature.
Oral (by mouth), ear, or rectal temperature
A forehead (temporal) scanner is usually 0.5°F (0.3°C) to 1°F (0.6°C) lower than an oral temperature.
Armpit (axillary) temperature
Note: For children under 5 years old, rectal temperatures are the most accurate.
Symptoms of serious illness in a baby may include the following:
Symptoms of serious illness may include:
Sudden tiny red or purple spots or sudden bruising may be early symptoms of a serious illness or bleeding problem. There are two types.
Petechiae (say "puh-TEE-kee-eye"):
Purpura (say "PURR-pyuh-ruh" or “PURR-puh-ruh”):
Symptoms of a severe allergic reaction (anaphylaxis) may include:
A severe reaction can be life-threatening. If you have had a bad allergic reaction to a substance before and are exposed to it again, treat any symptoms as an emergency. Even if the symptoms are mild at first, they may quickly become very severe.
A baby that is extremely sick:
A baby that is sick (but not extremely sick):
Many prescription and nonprescription medicines can cause a rash. A few common examples are:
Shock is a life-threatening condition that may occur quickly after a sudden illness or injury.
Symptoms of shock in a child may include:
Based on your answers, you may need care soon. The problem probably will not get better without medical care.
Based on your answers, you may need care right away. The problem is likely to get worse without medical care.
Based on your answers, the problem may not improve without medical care.
Based on your answers, you need emergency care.
Call911or other emergency services now.
Most rashes will go away without medical treatment. Home treatment can often relieve pain and itching until the rash goes away.
If your child has come in contact with a substance that may cause contact dermatitis, such as poison ivy, immediately wash the area with large amounts of water.
Once a rash has developed, leave it alone as much as possible.
If your child has a rash, he or she should not be in contact with other children or pregnant women. Most viral rashes are contagious, especially if a fever is present.
Itching with a rash is generally not serious, but it can be annoying and may make a rash more likely to become infected. Rashes caused by chickenpox, eczema, or contact dermatitis are much more likely to itch. Sometimes itching can get worse by scratching.
Home treatment may help the itching.
Carefully read and follow all label directions on the medicine bottle or box.
Try a nonprescription medicine to help treat your child's fever or pain:
Talk to your child's doctor before switching back and forth between doses of acetaminophen and ibuprofen. When you switch between two medicines, there is a chance your child will get too much medicine.
Be sure to follow these safety tips when you use a nonprescription medicine:
Call your child's doctor if any of the following occur during home treatment:
Several childhood diseases that cause a rash can be prevented through immunization. Immunizations help your child's immune system recognize and quickly attack a virus before it can cause a serious illness. Immunizations for chickenpox and for measles, mumps, and rubella (MMR) can prevent these common rash-causing illnesses.
Other tips for preventing rashes include the following:
You can help your doctor diagnose and treat your child's condition by being prepared to answer the following questions:
Current as ofSeptember 23, 2018
Author: Healthwise StaffMedical Review: William H. Blahd, Jr., MD, FACEP - Emergency MedicineKathleen Romito, MD - Family MedicineAdam Husney, MD - Family Medicine
Current as of: September 23, 2018
Author: Healthwise Staff
Medical Review:William H. Blahd, Jr., MD, FACEP - Emergency Medicine & Kathleen Romito, MD - Family Medicine & Adam Husney, MD - Family Medicine
To learn more about Healthwise, visit Healthwise.org.
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