Slide show: Common baby rashes
Photo of diaper rash
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A patchwork of bright red skin on your baby's bottom is probably diaper rash, typically caused by prolonged contact with urine or feces. To treat diaper rash, air out your baby's bottom. Apply a diaper rash cream or ointment at each diaper change. You might experiment with various types or brands of creams and ointments to find out which works best for your baby. Consult your baby's doctor if the rash doesn't improve or begins to blister.

To prevent diaper rash, change your baby's diaper frequently, let your baby go without a diaper for short periods of time, and regularly apply a diaper rash cream or ointment during diaper changes.

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