CMPA often presents through digestive symptoms such as persistent reflux, excessive gas, fussiness, or blood and mucus in the stool. Skin-related symptoms like eczema or hives are also frequently observed, as well as respiratory issues like a chronic cough or runny nose. Because these symptoms can overlap with other issues like infections or viral bugs, consult your pediatrician for a formal evaluation, which may include a structured trial elimination diet under medical guidance.