The causes of stomach pain after drinking yogurt include lactose intolerance, indigestion, etc., which can be treated by treating the cause and symptoms. 1. Treatment of the cause: yogurt is too cold, lactose intolerance, indigestion, etc. can lead to stomach pain after drinking yogurt. If the yogurt is too cold, you can leave it at room temperature for a few minutes before drinking it; lactose intolerant people try to drink less yogurt and avoid eating it on an empty stomach; indigestion people try to drink yogurt after meals. 2. Symptomatic treatment: including general treatment, drug treatment and other methods. (1) General treatment: rest and massage the abdomen. (2) Medications: If the abdominal pain is intolerable, belladonna and other medications can be taken to relieve pain. Belladonna may have adverse reactions such as dry mouth, dry eyes, drowsiness, rash, and urinary retention. It is contraindicated in myasthenia gravis, stenosing glaucoma, ulcerative colitis, pregnancy or breastfeeding, and those who are allergic to the drug. The above medication should be administered under medical supervision. If the patient’s stomach pain symptoms are severe, or if the symptoms persist for several days without improvement, he/she should go to the hospital promptly for treatment.