The baby ate egg white 3 hours after vomiting, if caused by egg white allergy should stop eating, anti-allergy treatment; if due to acute gastroenteritis caused by antibiotics can be used. If your baby vomits after eating egg white, it can be caused by egg white allergy, and it can recover by itself after stopping eating egg white. If accompanied by hives and other allergic phenomena, you can take antihistamines such as cetirizine hydrochloride drops and other relief. In addition, if the egg white is not fully cooked can cause bacterial gastroenteritis, vomiting, diarrhea and other phenomena, you can take antibiotics such as cefixime and other treatments. If the baby vomiting phenomenon is serious or persistent unrelieved, it is recommended to go to the hospital for examination. The use of the above drugs should follow the doctor’s advice.