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:

• Dress your baby in as few clothes as possible during hot weather.
• Breast-feed your child for at least the first 6 months, especially if either parent has a history of any allergy, including hay fever. Breast-fed children may develop fewer food allergies than those who are not breast-fed.
• Do not bathe your child too often to prevent dry skin. Most children do not need daily bathing. Children with very dry skin may do better if they bath once or twice a week.