Known causes of rashes include irritation and bacterial, fungal, or viral infections.
Symptoms include redness, white or yellow scales, itching, and pearly pimples, bumps, or cysts.
Rashes that require treatment can be helped by gentle cleansers, moisturizing ointments, antibiotic or corticosteroid ointments, and/or anti-itch drugs.
Rashes in infants and young children are not usually serious and can have various causes. Irritating substances, drugs, allergic reactions, and disorders that cause inflammation can cause a rash.
Some common causes of rashes in infants and young children include the following:
Diaper rash is a bright red rash that usually develops when the infant's skin comes in contact with a diaper that is soiled by urine, stool, or both. The moisture on the infant's skin causes irritation. Typically, the areas of the skin that touch the diaper are most affected.
Diaper rash can also be caused by infection with the fungus Candida Candidiasis (Yeast Infection) Candidiasis is infection with the yeast Candida. Candidiasis tends to occur in moist areas of the skin. Candidiasis may cause rashes, scaling, itching, and swelling. Doctors examine the affected... read more , typically causing a bright red rash in the creases of the skin and small red spots. Less often, diaper rash is caused by bacteria.
Breastfed babies tend to have fewer diaper rashes because their stools contain fewer enzymes and other substances that can irritate the skin.
Diaper rash does not always bother the child. It can be prevented or minimized by using diapers that are made with an absorbent gel, by avoiding restrictive plastic diapers or pants that trap moisture, and by frequently changing diapers when they are soiled.
The main treatment of diaper rash is to frequently remove or change the child's diapers. The child's skin should be washed gently with mild soap and water. Often the rash clears up with these measures alone. Use of a skin moisturizer and an ointment that creates a barrier between the child's skin and the diaper, such as zinc, petroleum jelly, or vitamin A and D ointment, may help. Antifungal cream may be necessary if the doctor diagnoses a Candida infection. Antibiotic cream can be used if the rash is caused by bacteria.
Cradle cap (seborrheic dermatitis Seborrheic Dermatitis Seborrheic dermatitis is chronic inflammation that causes yellow, greasy scales and dandruff to form on areas of the skin that have a high number of oil glands such as the scalp and face, along... read more )
Cradle cap is a red and yellow, scaling, crusty rash that occurs on an infant's head. A similar rash can occur occasionally in the infant's skinfolds. The cause is not known. Cradle cap is harmless and disappears in most children by 6 months of age.
Cradle cap can be treated by regularly shampooing with selenium sulfide shampoo and massaging mineral oil into the scalp to help loosen the crust before shampooing. The crust may be worked off with a fine comb. Cradle cap that does not abate with these measures may need further treatment, such as corticosteroid creams.
Atopic dermatitis Atopic Dermatitis (Eczema) Atopic dermatitis (commonly referred to as eczema) is chronic, itchy inflammation of the upper layers of the skin that often develops in people who have hay fever or asthma and in people who... read more (eczema)
Atopic dermatitis is a red, scaly, and itchy rash. The rash tends to appear in patches that come and go, often worsening with cold, dry weather. Infants tend to develop red, oozing, crusted rashes on the face, scalp, diaper area, hands, arms, feet, or legs. Older children tend to develop one or a few spots, usually on the hands, upper arms, in front of the elbows, or behind the knees.
Although the cause is unknown, atopic dermatitis tends to run in families and in many cases is thought to be due to an allergy. Its origin may be similar to that of asthma. Most children outgrow atopic dermatitis, but for others it is a life-long condition. Children with severe cases may intermittently develop infections in areas where they have scratched and torn the skin.
Treatment of atopic dermatitis includes use of skin moisturizers, gentle soaps, humidified air, corticosteroid creams, and anti-itch drugs. Efforts to avoid triggers of a child's allergies may help alleviate the condition.
Viral infections often cause rashes in young children. Rashes caused by roseola infantum Roseola Infantum Roseola infantum is a viral infection of infants or very young children that causes a high fever followed by a rash. Roseola infantum is caused by human herpesvirus-6. Typical symptoms include... read more and erythema infectiosum Erythema Infectiosum Erythema infectiosum is a contagious viral infection that causes a blotchy or raised red rash and a slapped-cheek red rash on the face along with mild illness. Erythema infectiosum is caused... read more (fifth disease) are harmless and usually go away without treatment. Rashes caused by measles Measles Measles is a highly contagious viral infection that causes various cold-like symptoms and a characteristic rash. Measles is caused by a virus. Symptoms include fever, runny nose, hacking cough... read more , rubella Rubella Rubella is a contagious viral infection that typically causes mild symptoms, such as joint pain and a rash, but can cause severe birth defects if the mother becomes infected with rubella during... read more , and chickenpox Chickenpox Chickenpox is a highly contagious viral infection with the varicella-zoster virus that causes a characteristic itchy rash, consisting of small, raised, blistered, or crusted spots. Chickenpox... read more are becoming less common because children are receiving vaccines Childhood Vaccinations Children should be vaccinated to protect them against infectious diseases. Vaccines contain either noninfectious fragments of bacteria or viruses or whole forms of these organisms that have... read more .
Dermatophytoses Overview of Dermatophytoses (Ringworm, Tinea) Dermatophytoses are fungal infections of the skin and nails caused by several different fungi and classified by the location on the body. Dermatophyte infections are also called ringworm or... read more (also called ringworm or tinea) are fungal infections of the skin. In children, infections of the scalp (tinea capitis Scalp Ringworm (Tinea Capitis) Scalp ringworm is a dermatophyte (fungal) infection of the scalp. Symptoms of tinea capitis include a dry patch of scale, a patch of hair loss, or both on the scalp. Doctors base the diagnosis... read more ) and body (tinea corporis Body Ringworm (Tinea Corporis) Body ringworm is a dermatophyte (fungal) infection of the face, trunk, arms, and legs. Symptoms of tinea corporis include pink-to-red, round patches on the skin that sometimes itch. Doctors... read more ) are most common.
The diagnosis Diagnosis Dermatophytoses are fungal infections of the skin and nails caused by several different fungi and classified by the location on the body. Dermatophyte infections are also called ringworm or... read more and treatment Treatment Dermatophytoses are fungal infections of the skin and nails caused by several different fungi and classified by the location on the body. Dermatophyte infections are also called ringworm or... read more of dermatophytoses are the same in children and adults and typically includes antifungal drugs applied to the skin or taken by mouth. Some children have an inflammatory reaction to the fungal infection that leads to a painful, inflamed, swollen patch on the scalp called a kerion Kerion Scalp ringworm is a dermatophyte (fungal) infection of the scalp. Symptoms of tinea capitis include a dry patch of scale, a patch of hair loss, or both on the scalp. Doctors base the diagnosis... read more . A kerion may require additional treatment.
Molluscum contagiosum Molluscum Contagiosum Molluscum contagiosum is a contagious skin infection caused by a poxvirus that causes pink or white, dome-shaped, and smooth or waxy bumps to form. This infection is caused by a poxvirus. The... read more is a cluster of flesh-colored pearly pimples or bumps caused by a viral skin infection that usually disappears without treatment. However, the virus that causes this infection is contagious.
Milia Cutaneous cysts are common, slow-growing lumps. Epidermal inclusion cysts are the most common cutaneous cysts. (See also Overview of Skin Growths.) Epidermal inclusion cysts (epidermoid cysts)... read more are small pearly cysts on the face of newborns. They are caused by the first secretions of the child's sweat glands. Like newborn acne, milia require no treatment and disappear a few weeks after birth.
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