Mr. Zhang is a taxi driver, long-term irregular diet, so Mr. Zhang often feel abdominal pain discomfort, but because of busy work, never go to the hospital for examination. One day in the evening, he felt the pain increased, so he found a few “pain tablets” from home and took them. The next morning, the pain worsened and he suddenly vomited 200ml of coffee-colored liquid, and again Mr. Zhang found a few “painkillers” and took them. The doctor found that Mr. Zhang had a plate-like abdomen, the liver boundary was narrowed, and the standing abdominal plain film indicated free gas under the diaphragm, so emergency surgery was performed.　　”It is commonly used to treat mild or moderate pain, such as headache, toothache, neuralgia, joint pain, muscle pain and menstrual pain. It can also be used for pain after dental, obstetric or orthopedic surgery. They are mainly used to inhibit the synthesis of prostaglandins and other substances (such as bradykinin and histamine) that can make nociception sensitive to mechanical or chemical stimuli, and are peripheral analgesics. However, at the same time, because of the stimulating effect of NSAIDs on the mucous membrane of gastrointestinal tract, which may be related to the inhibition of prostaglandin synthesis in the gastric mucosa, it can cause drug gastritis, leading to epigastric discomfort or pain, aggravating gastroduodenal ulcer disease, and can also lead to bleeding and perforation in serious cases, which needs to be paid attention to. Patients with perforation. In other words, patients with abdominal pain, the more painful the pain relieving tablets are taken, the more painful they become. So what should be done? Here, I recommend belladonna tablets. The active ingredient of belladonna tablets is scopolamine, which acts similarly to atropine, but is weaker. It can be used for abdominal pain caused by stomach cramps, gastroduodenal ulcer disease, biliary colic, ureteral stones, vomiting and diarrhea caused by gastritis and stomach cramps. But glaucoma, prostate hypertrophy is prohibited. Of course, it is best to go to the gastroenterology department of a regular hospital for standardized consultation and treatment, or if there is no condition, try taking belladonna tablets first. Patients with abdominal pain, moreover, should not casually apply morphine-based analgesics, such as opioids, mescaline, aminogest, prednisone, tramadol, etc. Although they do not cause damage to the mucosa of the gastrointestinal tract, they mask the condition and often delay diagnosis and treatment. Only patients with clear diagnosis should be applied. In clinical work, we often hear old professors say that a shot of Dulcolax goes down and the patient does not scream, but the next day when we take a look, the patient is cold. These drugs belong to narcotic drugs, which are more strictly managed, but some of them also belong to OTC drugs. In short, abdominal pain should not be taken indiscriminately to remove pain tablets.