Alarmed by that angry red rash splashed across your child’s body? Rashes run the spectrum, signalling anything from a mild viral infection to a chronic or even life-threatening illness. Since the list of rashes and their causes is extensive, you may wonder what’s what and when to call the doctor.
First, avoid self-diagnosis. “Viral and allergic rashes both can present as a diffuse, splotchy, blanching, pinkish rash. Because the rashes look similar, it can be impossible sometimes to tell the difference just by appearance,” says dermatologist Reginald B. Henry, MD.
Here are the more common types of childhood rashes and typical treatment methods. Check with your family physician or dermatologist to correctly diagnose and treat a mysterious rash:
Diaper rash - Even the most conscientious diaper-changing parent may see an uncomfortable, red, puffy rash blossom on their baby’s bottom. Babies can suffer from diaper rash after a bout of diarrhea, as a side effect from antibiotics, or if they recently started eating solid foods.
Change your baby’s diaper frequently and use wipes without alcohol or fragrances to gently pat the area dry. Treat the area with a protective barrier ointment after each diaper change. If the skin appears infected with blisters, oozing discharge, or painful open sores, call your paediatrician.
Eczema - About 10 percent of infants and children suffer from atopic dermatitis, or eczema. The chronic disease is especially common in families with a history of allergies and asthma. According to the National Eczema Association, 65 percent of children are diagnosed in their first year of life and 90 percent by the time they are five years old. Eczema is extremely itchy but is not contagious. It appears as red, scaly dry skin and can vary in severity.
Generally, physicians treat eczema first with an over-the-counter cortisone cream to calm the red, inflamed skin. Throughout the year, treat skin with moisturizers. “Lotions are better in the humid months, ointments in the winter months,” says Dr. Henry. “Don’t over-treat your child if the dermatitis isn’t really bothering your child.”
Bacterial - Staphylococcal and streptococcal bacteria often cause infections with rashes, including impetigo, scarlet fever (strep throat with a rash), folliculitis, and cellulitis. Lyme disease, caused by the bacterium Borrelia burgdorferi and transmitted by ticks, can cause a bull’s eye rash. If you suspect Lyme Disease, seek medical attention immediately. Bacterial infections are typically treated with antibiotics.
Viral - Viral-related rashes are splotchy, blanching (disappears when pressed), pinkish-colored, and usually accompany other symptoms like fever, diarrhea, sore throat, and lethargy. Typical childhood viruses that present with a rash include Fifth Disease, molluscum contagiosum, chicken pox (varicella), roseola, and hand, foot, and mouth disease. Depending on the diagnosis, your physician may prescribe antiviral medications.
Warts are another viral skin condition commonly seen among kids. Although warts generally resolve on their own, “due to the fact they are contagious, we tend to treat them with a spray or liquid nitrogen every one to two weeks until they are gone,” says dermatologist Donna Corvette, MD. “We can also treat with various topical acids and sometimes we use blister beetle juice, which is quite effective.”
Parasitic - A pimple-like skin rash that’s extremely itchy and contagious could be caused by scabies, which is a mite that burrows into the skin. Because scabies can spread quickly through skin-to-skin contact, your physician may recommend treating the entire family with a topical medication.
Fungal - The name might make you shudder, but ringworm (tinea corporis) a red circular skin rash, is caused by a fungal infection, not a worm. The rash doesn't always itch but can spread from skin-to-skin contact. Treat with an anti-fungal product.
Allergies - Rashes like hives are allergic reactions that are typically blotchy, blanching, pinkish, and intensely itchy. A new food or a new medication could be the culprit. Consult with your doctor for diagnosis and treatment. (Seek immediate medical attention if your child has trouble breathing or experiences swelling of the tongue, lips, or face.)
Contact dermatitis, like poison ivy or exposure to other irritants, can also cause itchy allergic reactions. Treat the area with an over-the-counter cortisone cream. For insect bites, try ammonia-containing products like AfterBite Kids®. Henry also recommends oatmeal baths, baking soda compresses, and Sarna® lotion or Noxzema® cooled in the refrigerator to help relieve itching.
When to seek emergency care
“Special care and concern should be given to the child who appears acutely ill with fever and rash,” says Dr. Corvette. “Seek prompt care in an emergency room setting for urgent treatment. Do not procrastinate on these types of rashes.”
Writer Christa is a mom of two sons, ages 12 and 14, who have sported a variety of questionable rashes over the years. Christa is the author of Happy, Healthy & Hyperconnected: Raise a Thoughtful Communicator in a Digital World.
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