Most of the abdominal pain after drinking milk is due to abdominal allergy caused by the protein in milk. It is best to stop the milk and drink a lot of warm water, which can effectively dilute the concentration and content of protein in milk and help reduce the occurrence of abdominal pain. For abdominal pain caused by milk, antispasmodic drugs, including scopolamine or atropine, can be applied to effectively reduce the intestinal spasm caused by abdominal pain. With the gradual metabolism of milk and its components, abdominal pain can be relieved, but for more serious abdominal pain, not except for diarrhea and enteritis caused by expired and spoiled milk, such cases should be promptly treated with anti-inflammatory rehydration and symptomatic support at the hospital.