A rash is one of the most common skin irritations that a baby and young children experience in the US. Admittedly, each rash may vary in appearance but the number one symptoms to look out for are: Pinkness or redness in the affected area Swelling Drying or peeling skin The other common irritation your baby may suffer from is a yeast infection. As it sometimes occurs with a baby rash. If in doubt of what is wrong with your baby visit your health care consultant.