A newborn allergy refers to an adverse reaction that a newborn baby experiences due to exposure to specific antigens. Some other terms that can be used as synonyms for newborn allergy include neonatal allergy, infantile allergy, and baby allergy. These terms are often used interchangeably in medical literature and refer to the same condition. Newborn allergies can manifest as skin rashes, respiratory difficulties, digestive issues, or anaphylaxis, and can be caused by a variety of allergens such as food, pollen, dust, or pet dander. Treating allergic reactions in newborns typically involves avoiding the triggering allergen and medication management if necessary. Early recognition and management of newborn allergies are essential to ensure optimal health outcomes for babies.