Q: Can food allergies cause a baby’s diaper rash?
A: While this reaction is not an allergy, but some of the more acidic fruits can cause irritation for babies, such as blueberries and other berries.
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If a child has a form of intolerance that involves frequent loose bowel movements, it will cause buttocks irritation primarily because of the constant cleaning and irritation that frequent diaper changes can cause.
In both cases, good barrier technique and a diaper cream high in zinc can be helpful. There are often other reasons for diaper rashes as well, including an irritation from baby wipes, detergent and heat.
— Pediatric allergist Sandra Hong, MD