[header] How to treat neck rashes for your baby [title] Use a mild unscented baby wash during bathtime. [step] Specific directions for use vary depending on the product you use, but generally, you can apply a bit of the baby wash to a soft, damp washcloth, then rub it into a light lather. Use the washcloth to gently wash your baby's rash. 
[substeps] Unscented baby washes are gentle and designed specifically for sensitive baby skin. After washing your baby's neck, rinse it with cool water and pat gently.