Baby acne typically looks like small red bumps on the baby's cheeks, chin, forehead, and sometimes back and chest. Baby acne is rarely present at birth, and typically develops in babies around 2-4 weeks of age. Baby acne appears to be more common in boys than girls.
Allergies are caused when our body responds to something in our environment that doesn't agree with us (called an allergen). Babies can be exposed to allergens through touch, eating, drinking or an injection. The body responds by releasing histamines in an attempt to fight off the allergen.
Histamines, however, can give your child coughing, sniffling, sneezing, and a runny nose. In more serious cases, a baby can experience what is called anaphylactic shock, which causes rashes, swelling and difficulty breathing; this condition can be life threatening and is considered a medical emergency.