The nausea and dry heaving of a baby drinking milk powder may be caused by inflammation of the throat, milk powder allergy, indigestion and improper feeding. 1. Inflammation of the throat: when inflammation of the throat occurs, it will cause congestion of the mucous membrane of the throat, and the baby’s mucous membrane of the throat is stimulated to cause nausea and dry heaving when drinking milk. 2. Milk powder allergy: some babies may have an allergic reaction to the milk protein in milk powder, digestive tract peristalsis abnormalities, resulting in nausea, dry heaves, vomiting and even diarrhea and other gastrointestinal reactions. 3. indigestion: due to the baby’s stomach capacity is small, gastrointestinal function is not yet fully developed, when drinking too much milk powder is easy to be retained in the stomach, resulting in increased abdominal pressure, which leads to nausea and dry heaving, often accompanied by spitting, loss of appetite and other symptoms. 4. Improper feeding: improper feeding position (supine position) or feeding immediately after crying, easy to make the baby choking, thus causing nausea and dry heaves. The baby drinking milk powder nausea and dry heaving, there may be other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.