A dry and bumpy or red and oozing rash with well-defined borders that's limited to a small area may be caused by baby's sensitivity to a specific irritant. The rash occurs only in areas that have been in contact with the offending material. For example, some children react to the adhesive on Band-Aids; babies with a sensitivity to soap may have an outbreak on their face and hands; and a reaction to laundry detergent can result in redness on the cheeks from where a baby has rubbed against bed sheets. In most cases, treatment involves simply avoiding the problematic substance and applying a mild cortisone cream until the rash subsides in a few days.
When to Worry:
Severe eruptions such as extensive poison ivy may require a short course of oral cortisone.