In adults, intertrigo often pops up in the underarms and groin, but in babies, the neck is a common site ... Sometimes, a neck rash is a sign that your baby has an allergy to the proteins in cow's ...

The most common IgE-mediated food allergies in adults in a US survey were to: shellfish (2.9%) cow's milk (1.9%) peanut (1.8%) tree nuts (1.2%) fin fish (0.9%) like barramundi, snapper ...