A rash that is red, bumpy and itchy can result from any number of conditions. According to the National Institutes of Health, rashes are symptoms of other conditions and can occur immediately after exposure or not appear for days. It's best to find the cause of the rash in children, because various kinds of rashes respond better to different treatments.
Ringworm
Ringworm, also known as tinea, is a common skin infection in children and can form on the scalp or body. According to Merck, the rash typically spreads throughout the child's body. The rash is usually circular and has a slightly raised border.
Cradle Cap
Cradle cap is recognized by its crusty yellow and red scaling and is commonly found on newborn's scalps and in the folds of their skin. It usually goes away on its own by the time the child is six months old. According to Merck, the cause of cradle cap is not known.
Diaper Rash
Diaper rash results when the baby's skin is exposed to stools and urine for long periods of time. Skin touching the diaper usually is most affected. Diaper rash also can result from a fungal infection called Candida and typically is bright red in color and found in the folds of skin in the baby's bottom and legs. Occasionally, a diaper rash can appear as a result of bacteria. Breast-fed babies usually have fewer incidences of diaper rash because they aren't exposed to the skin irritants and enzymes found in packaged formulas.
Insect Bites
Rashes often appear in small clusters of itchy red bumps after a child has been exposed to biting insects. According to the American Academy of Family Physicians, the bumps appear randomly in clusters around the body and usually disappear on their own. Children who are allergic to venom of certain insects will become sick and may become nauseous or have difficulty breathing.
Eczema
Rashes due to allergic reactions from environmental substances such as dust, pet dander and mold can result in eczema. Eczema is recognized by the white bumps associated with the rash, which may ooze with pus. Eczema is usually inherited, according to the Nemours Foundation.
Chicken Pox
The contagious infection known as chicken pox is recognized by a rash that turns into blisters and spreads from the face and chest downwards over the child's body. Children with chicken pox also develop a sore throat and cough. They usually present with a fever, aches and pains and general fatigue.
